Majority of my attempts to make a single coil build on this have ended up lasting only a few days. Vaping at 40-50W, either wicking can't keep up or the residual heat after hits kills the wick. The best I've found so far is SS tank track style clapton, 6 wraps, 3.5 mm ID @ 0.4-0.5 Ohm range, one build lasted almost two weeks of heavy vaping, I was amazed to say the least. I've tried wicking tight and fairly loose, result is roughly the same.

Any single-coil builds you have found really good in this wattage range?