Hi Wings. I fly an ultrastick (obviously) with the same engine and after using this engine on an Alpha trainer, I put an 11-7 on the thing and it really woke it up! The 3 bladed prop is fine for learning because it flies slow, but youll see a big difference in performance when you go to an 11-7. My stick can pull very nice verticals at half throttle using the 11-7 with plenty of power to spare. I might add that this is a stock engine with a muffler on 15% fuel. I flew the alpha with this prop for short time then went to the stick and the engine flies both planes very well with this prop. Good luck with your flying.