Only been vaping for 7 weeks (and zero cigs) and wanted something that looked healthy. Evolv's DNA 40 was just coming out and I got one from protovapor.com. Spent the week awaiting arrival of the unit, reading the 51+ pages of the nickel build discussions, they're up to 92 now.
Fortunately, the unit I got, worked flawlessly. The horror stories abounded on the earlier units. And wouldn't you know, all the coils I built, worked. Some kind of lucky, I guess. The last 2 builds, shown below, used twisted kanthal/nickel 200, allowed smaller gauge for higher resistance and enough toughness to not cut the wire when using the post holes on the Magma dripper. Specs: twisted 32 gauge kanthal and nickel, approx. 24 full twists per inch, 3+mm coil form, and about 10-13 turns.
Single coil of 0.49 ohms


vapes cool nice hit
Dual coil of 0.21 ohms



vapes nice and warm, very flavorful, becoming my favorite.
You'll note the 360F setting, during my research, found that this settings equals around 410F, cotton safety. The 390F on the single build was a carry over goof from a previous straight nickel build.