I have the 120 size Edge from Power Line. It is a nice flying airplane. Too bad my Moki 120 died on it about 3 weeks ago. The shaft snapped in half. Glad the engine died on the ground. The plane is in the basement now for the winter and will come out next spring with a Saito 180 or a OS 160. I was flying a Cap 232 and a few others but favored the Edge. The plane would almost land iself. I myself stay away from Karbonite Gears as they tend to be too brittle and break teeth for no apperante reason.