Hey Folks, I ordered some 0.5mm cotton wick from Nude Nicotine along with my 500ml of nic. The wick has a little break in period but I used 1 wick for 7 days before changing it and I believe it could have went longer, I use 24mg unflavored nic with a hint of sweetener though. Vaped smoothed and clean IMHO, I"ll be ordering more. 2mm inside dia. coil w/2" piece of wick folded in half then pulled through coil with a piece of wire folded. Any thoughts from anyone who has tried this and is it cotton seems durable?