I've had my extra since March. I have a Saito 82 with 14x6 prop. Hitec 5485HB servos. I have had major flutter problems with the right wing since the first flight. I have put Du-Bro heavy duty servo arms on the servos, sealed the surface on the ailerons. There is no slop in the linkages, and I still gat a VERY bad flutter when flying at half throttle. It is so bad that I'm surprised the plane is still together. One time the flutter stripped the gears in the futaba 3004 servos I had in it at first, so I went to the HS5485. Another time it pulled the servo mount loose that was attached with epoxy. The next time it pulled the linkage apart. The only thing I can see is the aileron is shorter than the trailing edge. I have written tower hobbies support and their response, the wing may by broken. The wing is not broken and this has happened from day one. I have been building and flying for almost 20 years and have never experienced this. Anyone have any other suggestions?