Easiest is to run two
coils (wires running parallel to each other) on one wick. No non-res. just exactly equal lengths. Although I don't think twisting the wires together improves performance, it might help in practical coil wrapping ways. (When you get to dual
wicks, you need to address air holes/air flow. That's why single wick is easiest.)
P.S. wires can touch each other, or not, some, alot, doesn't matter.