You Guys Set Juice Rules?

Just curious how you guys go about vaping through your juice bottles. I buy 30 ml bottles usually. I have a few tanks and dedicate a specific bottle to each tank. I make myself finish off a bottle before I go onto my next juices. If I decide to put a half bottle away and try a new flavor, I'd have a bunch of half bottles laying around and it would annoy the hell out of me.
I have a couple 60 mils on the way though, so I suppose I wouldn't mind stashing those halfway through. I suppose it could be way different for people that drip though.  


Similar Content



Doh!

Was hitting a very hot build hard, got a dryish hit, even a bit of cotton smolder. So I quickly whipped off the top cap and started painting some juice. I touched the tip of my juice bottle onto the hot coil and melted a bit onto it. Worse, I didn't realize till I took a big ol' hit...not the tastiest vape I've ever had.

Kanthal is cheap, experience is priceless.


 

Prize List For Ecf's 15 Millionth Post!

Hey all,

As you may have seen, we've got an ace competition running: The poster of 15 millionth ECF post will get to choose a prize from the list of awesome prizes our generous suppliers are providing. Please note, we haven't yet finalized how the prizes will be allocated into individual "wins".

All the other prizes will be claimed by runner-ups, in regular post intervals after the 15 millionth (we're still figuring that one out )

The list, as it stands, is in this thread. Make sure to check back, as we'll update it when new prizes are offered. Once again, many thanks to the generosity of our Suppliers!

Totem Sol A Totem Sol kit including a carved rosewood vaporizer with usb charger and decorative box.
Badlands E-Liquids the whole of the Dr. Derringer and Aunt Abigail lines
Keystone Vapor 9 x 30mls bottles of e-juice of the winners choice.
WeVapor The WeVapor "Boss" package:
Note: This eliquid is great with tank styled vaporizers but should not be used in drippers because the flavor can be overwhelming.
One Stop DIY Shop 6 x 30ml bottles of the exclusive One Stop Flavors or One Stop Blends.
Reosmods Any LP reo grand in any color in stock.
Junjii · 2,000 Junjii Points that can be used to purchase ejuice on www.Junjii.com

· Four 15ml bottles of Maple Donut, four of Sangria, four of lemonade
Global Vapors 5 x Aspire Atlantis 2.0
Craft Vapery 3 Month’s of CRAFT VAPERY’s curated subscription service - 3 bottle box, user picks nicotine strength. Plus 1 IPV4 100W Box Mod and 1 Atlantis 2 Sub Ohm Tank
Coffeebum Kydex case for any of:

iStick 30w
iStick 50W
Vapor Shark rDNA 40 with Shark Skin
Vapor Flask DNA 40
REO Grand
Billet Box
Praxis belt case
Sigelei 100watt/150watt including Plus versions
Hanna Modz V3 DNA40 pack
Vapourart 3 x GP PAPS 18500 SS Edition version 3
VapeFab Full line of Blackstone Twenty 30ml bottles.
GG Cigs GG4S (mod), an Esterigon (mod) and a Tilemahos V2 (atomizer)
By Leo a full Calix RBA, A ΣΟΦΙΑ RTA, An APOLLO RDA and a Dripper Spiral RDA
Ecigonly.com Full Halcyon Haze e-liquid product range
ECigaretteDirect.co.uk 5 Five Pawns Eliquid (one of each flavour on this page), the Aspire Atlantis Sub Ohm Tank and a Smok Xpro M45
heavengifts.com A Joyetech eVic-VT VW Full Kit - 5000mAh, a 50W Heatvape Invader Mini VW MOD Express Kit, and an IJOY ACME-VAPE Subohm Atomizer Tank Kit - 3.5ml
Halo 100 x 30ml bottles of their choosing from the top 10 best selling flavours in any strengths (0, 6, 12, 18, 24)
Vapor Alley 2 Astro Mods
Cignot Joyetech eGrip OLED kit
Joyetech eGo One mini kit
wholevapeinc Arctic Dolphin ADT50W Temperature Control Box Mod with silicon case.
A Kanger Subtank Nano
A pair of BOOTES 18650 battery
EFAN 2 bay charger
LiionWholesale Efest LUC V4 digital battery charger
plus their choice of 2x Samsung 25R batteries or 2x Sony VTC4 batteries, and a dual battery case.
Ron Buffkin - 1st Mate 56 hole Sampler stand in a choice of stain colors
MarkBugs "Gem" RTA by MarkBugs
VolcanoEU Lavatube 2.5
Gen-X Vapor 10 x 30ml eliquids
Steamtuners Full Custom Body for the Kayfun lite plus consisting of: Tiny Tank, Steamtuners Chimney, Drip Tip T1 Plexi.
Full Custom Body for Kayfun V4 Consisting of: Steamtuners V4 Nano Chimney, Clear View Tank, Drip Tip T2 Plexi.
Clear View Tank compatible with Taifun GT & GT2
Fortune Top Cap compatible with Kayfun lite plus & Kayfun V4
Diamond Tank Compatible with Kayfun V4 And K41 SS Drip Tip
Deck Access Kit for Kayfun Lite Plus
Expromizer Top Refilling Kit Regular size

ProVape Provari 3 - Tiffany Blue

Genesis UK 5 bottles of 10ml Ge.UK E-Liquid for a UK winner

Atmizoo Lab50 SS-M (brushed matte) with a corresponding T16 extension
One slot for the upcoming public testing release of the Wave, Atmizoo's new RTA

Velvet Cloud 15ml of each of their entire line – in the winner’s choice of mg (0mg, 3mg, 6mg, 12mg, 18mg)

Wizard Labs A $150 shopping spree at Wizard Labs

Health cabin Horizon Arctic Sub Ohm BTDC Tank Atomizer (Dual Coil) 1pc
Smok GCT Ni-200 Sub Ohm Atomizer 1pc
Aspire Atlantis Mega Tank Kit with Sub Ohm Coil (5ml)
iSmoka Eleaf Lemo 2 Sub Ohm Atomizer 1pc
Joyetech Delta II Sub Ohm Silver Atomizer Kit 1pc
Kangertech KBox 40W Silver Box MOD 1pc

RTD Vapor 1pc Xtar VP4 battery charger
2pcs AW IMR 18650 2200mAh batteries
2pcs Sony 18650 VTC4 batteries
2pcs Xtar battery case
1pc Cen-Tech multimeter
1pc Choice of Kanthal wire
1pc Cotton Bacon
1pc Coil winding jig

Gotvapes An MCV Mech mod of the winners’ choice

CCVapes 4x 30ml bottles of winners choice
1x Mutation RDA
1x Trident RDA
1x Nimbus RDA

Atmomixani Scythe shined atomizer
Nemesis30 shined
Nemi mix shined
Anima Ice mix shined

The Vapor Room A $100.00 Gift Certificate for The Vapor Room

SmokeStik Classic Bundle….your choice of any SmokeStik Classic kit including 10 5packs of any cartomizers, mix or match.
Ultra Bundle….Any ULTRA kit plus 5 3packs of extra coils and 2 bottles of each flavor of Select liquid (your choice of nicotine level)

Molehill Mountain Drip Tips Molehill Mountain Art - Part II | E-Cigarette Forum will build a lucky winner a quality custom topper of their choice.

VapingZone 1x Innokin Cool Fire 4 (winner’s choice of in stock color)
1 x Eleaf iStick 50watt (winner’s choice of in stock color)
2 x iTaste MVP Camo Kits with IClear30S Tank (One for each winner)

Virgin Vapor A $500 gift certificate for virginvapor.com
500ml of e-liquid of the winners' choice (in 17 bottles of 30ml.)  

Flavor Chasers

Hi all first off like to say thanx to everyone who answers my newbie question. You guys been alot of help. My vapeing knowledge is improving. Now I have another one for you guys . I am looking to get the most flavor out of my vapes. I own a ipv4 a mutilation x v4 a tugboat and kanger submini and a eleaf 50 watt. I have 26g kanthal 24g kantal . What is any should I get for more flavor . What kinda build should I do ? How many wraps? Please give me a full Break down on the way to get best flavor possible . Juice with more vg I am so new and lost thanx in advance  

I Made It A Year !!!!

So today I would like to thank the following people who not only started me on this journey, but who have supported me through what I feel was 1 of the best things that could have happened to me:
1. Gary Greener - You gave me my 1st set up for free an egoCtwist battery & Kanger Pro tank
2. Dylan Hill - You have been in my corner from Day 1- through up grades & bringing me to the BEST B&M to get juices & knowledge & for Building me Coils bc to be honest I'm just to lazy to build them lol
3. Maja Flava Vape Den 44 East Scott Street Riverside NJ - You guys have been AMAZING!!! Between all the time you've spent with me explaining vaping, mods, juices, coils, coil building, support, & Even more I can't Thank You Enough!! The vape community & people I've now become friends with from your store is incredible & with out you I wouldn't have been able to stay off the cigarettes.
4. ECF Forum - Thanks for having this forum!! The support, knowledge, & experience of the forum is so much more then I could have imagined.
THANK YOU ECF FORUM COMMUNITY TO EACH & EVERYONE OF YOU GUYS ON HERE HAS HELPED AS WELL!!

HERE'S TO MANY MORE YEARS OFF THOSE BUTTS & CLOUD CHASING DREAMS!!

THANK YOU ALL!!  

Vaping As A Smoking Cessation Tool Does Not Work

I'm off and on with vaping. Today I'm trying to vape to replace cigaretts. So why am I complaining? I have less than 1/4 tank of juice, which is almost doable, but now all of a sudden my ecig is barely hitting. It never does that! Vaping is just too difficult. With cigaretts, you just flip the top and know that you are good. If not, you can stop anywhere and refill. I don't have my personal, tolarable juice mixture here with me at work, so I can refill and make this work. No, I have less than a 1/4 tank of juice to get me through more than a 12 hour day.

Sorry. everytime I give it a go to get off of cigaretts, I run into these similar issues. And it's not often that I give it a real go, so it's double frustrating. It's not like "oh well, just try again tomorrow".  

How Much Juice In A Week?

Hey guys I'm just wondering, how much juice would you estimate you go through in a week!  

Juice Mixing

This has probably been posted a million times over but does anyone mix juice brands for New flavor I have page six from blueprint vapors which is green tea raspberry with citrus and cream and 13th floors bermuda with a flavor of sour green apple mixed berries and cream accented with raspberry champagne was wondering if (and porbably) mix like this and with what  

From Cigs To Vaping... Help Please

I have been vaping for about a month, and am still dealing with bad throat irritation. I have a 50w istick with an Atlantis tank. Using 3mg juices, normally vaping at about 3.5-3.8v. Changed coil about a week ago.

I find vaping hit and miss. Sometimes I take a bunch of drags and it's smooth and tastes great, big clouds. Other times (especially in the morning) I take even a small hit and I'm coughing up a lung. I take even one hit in the morning and for a few hours my throat is dry, stuffy and irritated. I am pretty active, and I drink plenty of water. I don't think it's me, I think the tank is sometimes giving me smooth good tasting vape but other times it comes out incredibly harsh, and I can't explain why. Is it normal the first 10 hits or so in the morning are that harsh? it seems as though every morning I have a sore throat because of it. Even in general I just feel stuffier, and is since going from a pack of cigs a day to 1-2 cigs a day and vaping.

Any advice or ideas?  

Joyetech Evic-vt Kit Vs Sub-tank Mini Kit

I think both of these kits are gorgeous and the price is pretty close. I was curious which is the better setup/value? I think my next purchase will be one of these kits and I am hoping you guys can help me choose. I know the Sub-Tank mini has the RBA and I think the e-Vic has temp. control but I was more thinking overall impressions or durability and quality. Thanks.  

Vaping Ain't Easy

Don't get me wrong, I love to vape. But I do miss the convenience of analogs. Every corner store carries your brand, it's easy to bum a smoke from a friend or even get a light from a stranger. Vaping isn't that easy.. Today I replaced the coil in my atlantis before leaving home for the day. I suppose I should've tested it before I left the house but I haven't had a stock coil fail yet. So about a hour away from home I pulled my sx mini out of my lunch box and was looking forward to a vape. But it gave me an error, check atomizer. So I unscrewed the tank and double checked the coil was snug to the base and no moisture was under the coil. I also checked the floating pin on my sx mini and everything seems good n clean. Still I get the message, check atomizer.. Sooo frustrating because I'm a hour away from home with no backup vape and no extra coil.. I broke down and had a terrible death stick. Couldn't even finish it due to taste and smell. It's just not my vape. Anyways no one else at my work vapes so I had to vent to some other fellow vapors.. I can't wait to get home and get another coil!!  

Let's Be Honest, Smoking Cigarettes Is Far Cheaper Than Vaping!

I am new here and I am surely not the type to stir the pot, but something is bothering me. I see all these members with banners at the bottom explaining how much money they have saved thus far by not smoking, and vaping instead? I just have to shake my head and wonder what planet they come from.

Ten years ago I purchased a top of the line cigarette injector for $25. That same injector costs $35 right now, and it has been highly improved. I can buy top quality bulk tobacco wholesale on the internet, top quality filtered cigarette tubes, and produce world class cigarettes for just about $1.25 per pack. A few years ago it was less than a $1.00 per pack. These are first class top quality cigarettes, better than anything you can buy in any store. You can make them in any style or strength you like, regular or menthol.

A fumble fingered klutz with no practice can pump out one cigarette every 30 seconds, I can do 5 or 6 per minute, and I am kind of a klutz myself! I know poor people and rich people who make cigarettes this same way. Who still buys cigarettes in stores for $5 to $10 per pack? Seriously, who does that? Certainly not anyone with an IQ above 75.

Don't tell me it would have been to difficult for you to do, because messing with Mods, and e-juice, and batteries is far more time consuming and difficult than pumping out cigarettes on a tube injector. So my former habit cost me $1.25 per day for a pack. I can already tell that I will be burning far more than $1.25 in e-juice daily.

All I am saying is that vaping is more expensive than smoking for anyone with common sense, so stop bragging about how much money you saved, that is disingenuous. Brag about why you are doing it for your health.  

I'm Back!!!

Hey guys and gals!! I've been a member here for a long time but I ended up going back to analogs for a while but now I'm back and very glad to see how the vaping community has grown so much.

When I left, RDAs were just getting popular but most rebuildable fans used genesis attys and hybrids. The community was no where near where it is today!

My brother just gave me a Sigelei 100w and a couple panasonic 18650's to get me off analogs and I dusted off my Opus D (DNA20). Also, just got a Kanger Subtank Nano in the mail.

I'm amazed, actually. When I went back to analogs the newest tank out was the protank 2 (I think). I'm glad to see how far we, as a community, have come.

I'm ordering supplies to start a custom Mod build so keep an eye out in the modders forum!!

Vape on!
Tanks  

Vicious Ant Variant Advice.



Ok so my amazing better half got me one for Christmas. And a couple extra batteries with a super fancy and complicated charger I have him use for me.

Now does anyone have any suggestions as to anything I can put on it to really see what it can do. I think all of mine would become a blow torch over 100w.

Heck I'll be happy with recommendations on people's favorite higher watt builds as I don't know if I'll ever take it even 50% as high as it can go.

Yes he's nuts for getting me a unbelievably high watt pricey mod. But he knows I like to experiment. And we'll I can't think of many builds it can't do. So it's kind of bad ... for that.


Sent from my iPhone using Tapatalk  

Underrated Rdas

This isn't a review or bashing of other RDAs.

I want to hear from other people what RDAs they are using that they feel are very underrated than the more popular ones out there.

I'll start off by saying that I think the Lycan RDA by Cigreen is WAY underrated. By far the best RDA i own with countless options for airflow and drip tips.

What RDAs are you guys/gals using that you feel need some love!?  

I Have Graduated.... In Two Ways!!

I am once again a happy vaper!!!! Ecstatic to be exact.

Graduation number one:

I have just very successfully rebuilt my first Nautilus BVC coil. Wasn't even as difficult as I thought it would be and didn't take nearly as long as I thought it would. I am now a forever rebuilder! I was a little worried because I didn't have any wire or filler material here, or so I thought. However, as I posted in the wick and coil section I literally tripped over an old hair blow dryer in my bedroom and did some research and discovered that the heating elements in them are nichrome wire.

I tore that sucker apart and uncoiled all the nichrome wire in it and discovered two things. One, there was actually three different gauges of nichrome in this particular hair dryer, all three kind of close in gauge. Second, different strand of gauge came out to about 20 feet or more each, so I ended up with over 60 feet of nichrome free. Below is a pic of the three strands, the strands go from the thickest gauge on the left to the thinnest on the right:


So I had my wire but needed filler. I was gonna use this medical gauze I have here but wasn't sure if it was pure cotton or not as there was nothing on the box that said what it is made of. But then my cute little neighbor knocked on my door and asked to borrow a screw driver. I obliged her and on a hunch, her being female and all, I asked if she used those round cotton pads to remove her makeup. She does and gave me a partial pack of about 50. Wooo Hooo, off the the races....

So I queued up Hawkeye's Aspire BVC Rebuild video on Youtube and got to work. I very carefully took apart the 1.8 ohm head that came with my Nautilus and saw what I believe was the problem with it. See the pic below:



OK, I'm a newb and all.... But that black wick doesn't look right, it looks like it's been burnt. I may be wrong and someone can correct me if so. I only used this once and only got maybe 2 vapes on it before I got the flashing dashes. Plus, while the coil is stretched out here, I did that after disassembling it. I carefully removed the wick from the coil and it was in the two pieces as shown in the epic. They were kind of touching each other inside the wick, but it seems like the wick burnt out and separated or maybe they had broke during manufacturing, or packing, or whatever... At any rate, it does indeed look like a defective coil.

So, I watch Hawkeye's video and build along with him and am very proud to say I believe I rebuilt this coil pretty damn well, you can tell me from the pic:



Is it just me, or is that one sexy looking rebuilt BVC? I used the thinnest gauge nichrome from the pic above and followed Hawkeye's method with the exception of giving my coil three extra wraps. I should have taken a pic of it.... Oh well.

So, with the coil rebuilt I grabbed a beer, put my Nautilus back together with the new rebuild, filled my tank and fired it up. BAZINGA!!!! She fired up at 2.1 ohms!!!! I was aiming for 1.6, but the three extra wraps probably added the extra from what I've read here on amount of ohms to coil wraps and wire gauge. I've now been happily vaping away for the past two and a half hours and the ohms are sticking between 2.0 and 1.9 with the odd jump to 1.7.

I gotta say here too, this is even better than the original Nautilus BVC. Now I understand why people rave about cotton and DIY rebuilds and such. I'm getting a lot more flavor, a much better throat and lung hit, and an awesome natural draw, and I'm not getting that sizzling/gurgling noise I was getting with the stock heads. Which leads me to my second graduation.....

I have broken the Tootle Puffer barrier and am now vaping at 28 watts. Hey, I don't mind Tootle Puffing, but I do like the bigger hit I get with the higher wattage. Been hitting this thing pretty hard though LOL. I never broke down and went back to the stinkys while my unit was down, and a big part of that was because I actually missed my vaping more than the stinkys.... I think a small part was also because I got so preoccupied with solving the issue with my hardware I didn't have time to think about stinkys.

Again, I want to thank everyone who helped out in my original thread about the problem. I love this place man!!!! I'm now a lifer both here and to vaping. Now I can't wait to get more equipment and also start doing DIY juices.  

Prizes! 15 Millionth Ecf Post...

A little over 18 months ago, we held a prize for the 10 millionth post on ECF…

Well, I’m very happy to say that we’ll soon be approaching the 15th million post and, exactly as we did last time, we’ll have prizes for this landmark.

Our registered suppliers have been extremely generous, and we've a whole host of prizes up for grabs. So, the way this will run is...

We will have one main winner and a number of runner ups. The main winner will be the post we deem to be the 15millionth, and the runner ups will be every (as yet undetermined) number of posts afterwards. The winner will get the first pick of the prizes on offer, and subsequent runner ups will get to choose in the order they come through. How does that sound?

I can’t tell you how much it means to me that this site I started on a whim 7 and a half years ago has become such an amazing living beast; a community that has been responsible for the increasingly global phenomenon that is vaping.

It’s worth thinking for a minute about these 15 million posts. Among them are some of the most important conversations in public health history. I don’t think this is an exaggeration; Conversations that have led to new products, conversations that led to lives changed, conversations that in aggregate have played a massive part in vaping entering the mainstream.

The future’s ahead, and the conversation continues, but I wanted to take this moment to say thank you!

Oh, and good luck!

The prize list can be found he Prize List for ECF's 15 millionth post! | E-Cigarette Forum  

Using Nic Gum While Flying

I'm going to be taking an 8 hour flight next month and I've decided to abandon my idea of stealth vaping, as the rewards are just not worth the risk in my opinion, if something were to happen and if it was discovered. I don't want to be the subject of a news headline "Unruly vaper causes flight to be diverted. Flight boarded by seven sheriff deputies with a SWAT team standing by as backup."

Has anybody ever used nicotine gum before? I was thinking about getting a small pack of gum and using that instead. At least that is not forbidden. I've never tried nicotine gum before, but I noticed that it comes in 2 mg and 4 mg. I'm not sure how that relates to nicotine mg in e juice, but I'll just get a small pack of the 4 mg I guess.

Does anybody else use Nicotine gum sometimes, like when flying?  

Older Folks And Vaping Front Porch - Part Three

Older Folks and Vaping Front Porch - Part Three

Welcome to the ‘Front Porch’ for Older Folks and Vaping. This thread is a continuation of the original started almost 2 1/2 years ago by ˇTxtumbleweed’. It grew to over 21,000 posts and the ‘part 2’ continuation thread was begun about a year ago. The ‘part 2’ thread over the last 11 month’s hit 15,000 posts, so now it’s time for a ‘part 3’.

The original and 1st continuation threads are still around and you can find them he

Original (now closed):
Older Folks and Vaping

Part 2 (now closed):
Older Folks and Vaping Front Porch - Part 2

The Porch for Older Folks is dedicated to Tex. He started the ball rolling and helped so many of us when we first started our vaping journey. He offered us encouragement, shared his knowledge and told us great personal stories ranging from riding the rails as a kid, working as a lineman, lumberjack and fishing the cold waters of the Bering Straits.

Randall (Tex) has since passed on and we are honored to continue the Older Folks and Vaping Front Porch in his memory.

The mods have asked us to stay on topic about vaping in this thread. Please adhere to this guideline.

Feel invited to join us in the lounge where we can chat about vaping and any other ‘topic of the day’ that meets your fancy.

Older Folks and Vaping Back Porch - Part 2

Older People 55 and Up (original, now closed)  

Vaporshark Slashing Prices.

rDNA40, $130 and DNA40, $100. Even the DNA30 is $45. Excellent prices for a couple great devices and according to Vaporshark, the prices are permanent. It just sucks I bought a used rDNA for $150 a few weeks ago. Oh well. At least I got a couple shark skins and wireless charger.



Sent from my HTC One M8 Harman/Kardon edition  

Vapors Fatigue

I'm looking for ways to get over vapors fatigue aka vapors tongue. I'm currently using a mint breath spray and it works ok-ish. What are you guys using?  

Ecf Suppliers Forums *** Where To Buy!***

ECF Forum Suppliers

Forum Suppliers

+

ECF Suppliers Forum

E Cigarette Suppliers Forum

***included are subforums for international specific and Holiday specials in the Seasonal Forum!

UK /Ireland
UK and Ireland Suppliers
Euro
Euro Suppliers
Canada
Canada Suppliers
Australia
Australia/New Zealand Suppliers

and Holiday Specials in the Seasonal forum ( only available temporarily during a specific holiday)
http://www.e-cigarette-forum.com/forum/seasonal-sales/  

The Fasttech Thread For All Fasttech Posts (part 2)

As the first FT thread will be closed as it has reached the 15k post limit I thought I would start a new one.

Tell us what you are buying, if it is good or bad value. Please pay special attention to the length of time every single order takes to arrive with you as I know you guys love to chat about that  

Again With The Batteries

Me again with battery questions

I ordered and paid for Samsung 25Rs from my local vape shop. They just informed me that they made a mistake and that battery is not currently available, and have offered me these as replacement:

Sony VTC5

Sony VTC4

LG HE2

LG HE4

Should i take any of these or should i wait for the samsungs to become available again? (who knows when that will be)

I'm leaning towards the VTC5 just looking for some confirmation from you guys that that is the right choice !

Oh and i should mention, the top wattage i will be hitting is 30w and i do not sub ohm.
Thanks!  

Your Opinions On Cellucotton

Hello ECF,
I've been using cellucotton for a couple months now seem to last longer that cotton. I think it's a good wicking material wanted to here some other opinions about it.  

What Kind Of Wire Should I Be Using?

Hey all, I was just wondering, I've seen a few people talk about using A1 kanthal? Im not too sure what im using, but i know its 24guage kanthal. If im just making .2-.8 ohm builds, on a stingray x and I also have a voltage regulated box mod. whats the safest/best wire to use?