I have a great planes extra 300 s and I gotta os 46 engine in int. I am getting full rudder throw. I had no problem doing a knife edge with the sig something extra but with this plane, it wont do a knife edge that good. I read a review in great planes website that you can do a knife edge loop. What can be the problem? when i go up elevator the plane seems to wanna roll to the left with no rudder input and not roll much to the right with full right rudder input.