RE: Moki 2.1 users...Props?? Nitro Percentage?
If you want to 3D with this engine, I would recommend getting the cline regulator for better reliability in stalled, high aoa maneuvers. Mine quit while pulling into a hover. With the cline, it wouldn't have happened. Great engine though. Lots of power. I use 0% nitro. I use a zinger pro 20X8, but I've heard the menz is better.
Greg