Hi everybody I have been flying my trainer for about 4 months and the guys at my field say I am flying my trainer to the limit. As my next plane I have decided on the UCD. I will fly a little pattern with it first so my 3d will be more percise. Any way I haven't got an engine yet and was thinking of a saito 91 or 1.00 at $220.00 and $250.00 or an O.S. 91 2 stroke at $230.00. I was wondering if any one has any suggestions on an engine.