agreed ... don't worry about touching; the whole Micro Coil phenomenon is about
coils wrapped and compressed (touching, not overlapping) to get a better heating surface, and more surface for the
juice to vaporize off of.
Some say the more wraps, the more surface for the
juice to vaporize off of, and depending on what gauge of wire, you can play with your target resistance.
I.e. thicker wire will reduce the resistance so you can use more of it to get the same resistance that thinner wire would give you.
I also use nichrome wire as well as kanthal.