Thanks, I've got two of the 12.25 x 3.75 already on order for the Modeltech Magic 300 that I am assembling. That's the recommended prop for that plane, which is a .46 size plane. I'll be running the new XLS .52 engine on it. 'Till then, maybe I can get a 11x5 to try. I really do like to fly slower, with more vertical authority. Once I master this plane, I will probably trade it off on something slower, but I want to beat it first!