You could have hit the nail on the head I have found that if the ailerons are not exactly right (measured on an incidence meter) the C50 fly’s very wrong (its ailerons are almost a third of the wing) I noticed it because at the freestyle event lance blew his aileron servos in his synergy 140 and I lent him 2 futaba digital servos and the linkages of off my C50. At the end of the day he gave me back the two servos but kept the servo arms and linkages of off the C50 because he liked them! (long dubro arms and Pete Tindal Linkages) I replaced them before the next flying session and when I flew it was a dog. Flicky and pitched in knife-edge and generally wrong. When I looked over it I noticed (very hard to see) that both ailerons were very slightly drooping. I re-adjusted and everything was back to normal.

Dave