If you want to see how they fly, come down to the illawarra model aero club. We have about 6 in the club at the moment, and more comming. I have flown one with a os 46 in the front. It went ok but didn't have the punch that it needed when it started to fall out of a hover. As a cheap sports/pattern plane they are great. The one that I flew wasnt setup for full 3D but the potential was definately there. A supercharged YS or even an os50 would be a really good match for this plane.

Matt