Flexsr, I still rock only RM2s with single coil. Well, it depends on what you mean by single coil. I wrap a parallel coil in my RM2s, but not dual
coils (one on each side of the atty) I use 28g Kanthal A1 and do 3 or 4 wraps on a Q-Tip shaft which takes 3mm ReadyXwick perfectly, in my opinion. I want to try all of these other attys that we are all reading about, but lack of cash squashes that. I haven't owned a kick since the days when I rocked my first REO. Nowadays, I just build what I know will come in at about .4-.5ohms and the coil I mentioned above gives me that.
I DO want to try some of the mouth-to-lung atomizers and I will some day.