I put a 3mm, 28ga nickle build in the L2 last evening...metered @ 0.15. It was a tad higher than I thought...I must have added a wrap. The bottom line is that this build is giving me an excellent vape. Great flavor and vapor. Not a hint of dry hit yet using 50/50 juice. The only thing I did even slightly different was to fluff the cotton and comb out any compressed areas and re-trim it to fit. The resistance is very stable. I have it set to 48J @ 420F. The last TC build I put in did give an occasional "dry coil" warning. Fluffing and combing the wick seemed to solve that issue.