Just playing around with my new AR mod and a troll rda. Really enjoying it so far best build to date is with ni80, 26awg, 8 wraps around 2.7 mm shaft. Quad coil at .2 ohm. Kicks out some clouds but I want some moar, relatively safely of course. I'm using vtc4's. Any builds you guys have had great luck with on a single 18650 mech? I've got lots of wire to work with so chuck some ideas my way!