I've been reading about cotton wicks and seeing some friends who sub ohm mod, etc. so I'm wide awake tonight and frustrated with several burnt coils after only a day (think it might be a new juice I'm trying), so I do a little experiment tonight. I've never rebuilt a coil, and don't have the materials to do so. Well I took a Smok coil similar to a PT2 coil and got all of the wicking out completely, dry burned, rolled some cotton and it is awesome! I'm so excited about the way it wicks and draws now and the taste, that I think I may start rebuilding the coils. I never imagined that would EVER happen.