On my fourth flight of my Sig Cap231 EX today I was having a hell of a time controlling the plane. After a nerve racking attempt at an approach I was able to land the plane undamaged. Upon inspection I discovered that BOTH aileron servos (9202's) were stripped. I had heard what possibly could have been flutter early in the flight, but with others running their engines close by it was hard to tell. I am very happy that I was able to land it safely with little or no aileron control, but puzzled as to the cause. All of the hinges are in solid, the gaps are minimal and sealed, and I am using a DuBro anti vibration mount for my Saito 180. Could the servos not be strong enough to handle the load, or is it a case of 'I should have got metal gear servos'? Any help you could provide would be great. I want to try to avoid $#@# in my pants next time I fly this bird.

Thanks,

Mike