Thanks, Gary.

I apologize in advance for sidetracking this thread, but, out of curiosity, what prop does the OS .61 RF-P like, and what can it turn? The reason I'm interested is because I have my Tower Hobbies .61 spinning an APC 11x10 at 11,200rpm with the stock muffler (which is actually a tuned muffler). Today I'm going to tach an APC 11x11 if I can. If it breaks 10,000 I'll be very happy.

Thanks, David