I use SS316L in my RTAs. I think it's got the best flavor and best health rating according to this board.
One of my RTAs has 3.5mm coils (why don't people use larger coil diameters like this, btw?) and the other has 2.5mm coils. The main one I vape is at 0.11 ohms, at 125 watts with a 150% 1s...
