Ok, I'm trying to be enthusiastic about my Moki (after being an owner of a fine running ST 3000) but I'm having trouble with findind a good prop for it. The 20x8 MA wood was way too much for it-6600 rpm. A Pro Zinger 18x8 spins at 9000 but the plane creeps along and makes a lot of noise. I put a Std Zinger 18x8 and dropped the rpm to 8000 but still seemed to bog in the mid-range. This is on a Midwest Cap which flies beautifully but so far, not happy with the engine. I want a prop with good thrust that and good transition, and loads the engine to about 8400 rpm's. Running about 3% nitro and 12% oil fuel blend and clueless on the glow plug. Does anyone recommend a OS F or an Enya #3?