IF you have a computer radio, use negative expo on the throttle. I set up mine at around -50% so that the plane flies slower when level, but you have the power for vertical.

Have you ever tached an engine at "1/2 throttle"? I think you will be surprised at the rpm you get. My experience is it is around 2/3s not half. (eg 10000rpm max, 2000 rpm idle, you would expect 1/2 to be 6000. No, most engines will give about 7500)

Remember with a bipe it has more drag than a monoplane.

Thinking of putting a Saito 91 in my GP Cap 232.