RE: Moki 210
I put a Moki 210 in a minicraft edge 540 (78" wing span) with a 21 x 8 Bolly wood prop. The package weighed about 13lb. If you like going up hill with real authority great combination. Previous to Bolly prop I has an APC 20 x 8 it was quite heavy and didn't perform as well as the wood prop.
By the way do you guys use the OS 4 stroke plugs in your Moki's.