I have a GP Super Sportster 40 with a 46fx in it. Does great aerobatics, and is very stable. I had it clocked at 105 MPH level with a 9x10 prop. With a 12x4, does great hovers and knife edges, and is still quite fast. It slows right down for landing, it is one of the easiest airplanes I have landed.

Hope this helps.

NJD