ED :

Ive got the Magnum .91 on a Hanger 9 Corsair with a 3 blade prop, It flies very scale like, fast but not so fast its out of scale.
Ive never tried a 2 blade on it, I'm sure it would be faster.
I know thats not a aerobatic plane but its a nice scale looking plane.
I have the OS .91 on a Pica Jungmiester and it flies wright where you point it like you say with plenty of power for me , but just about everybody I know likes more power than I.
I just thought I would tell you of a couple of scale looking planes I have with that engine, but not really aerobatic or at least not near as aerobatic as the planes these other guys have.

SEEYA , TIM