Hmm..no talk of coil diameter and thickness of wick.
Worth discussing i.m.o.
(apologies if I've missed something here...)
28 guage, about 8 or 9 wraps, and have done coils at 1.5mm, 2.0mm, 2.5mm, 3.0mm diameter. Wick is sterile cotton from CVS. I basically just use enough cotton so that it fills the diameter of the coil without being too tight or too loose. I find that with a 3mm diameter coild i have to use alot more cotton and the ends that you tuck down onto the deck end up being pretty big and i usually cut them down a bit.