Thanks Charlie. I just wanted to confirm that it might be a possible problem. Ive recently lost 2 throttle servos over the last few months due to vibration ( Hitec HS -82mgs). The servos werent designed for the vibration, but its fresh in my mind so just dont want to have to deal with it later. I will probably add a little ply and raise the servo up 1/8 of an inch.

thanks