This is not an issue I have heard of... but I suppose it is posible. You might want to have the radio checked out and the gimbles recalibrated.

I would also suggest you use the programmer and set the deadband on the Hitec digital servos to "1" (defaults is "2") to obtain the best centering possible. You should also use the shortest horns (mounting location) on the servo as possible and utilize the maximum EPA in the radio for the desired travel. If you reduce the EPA with a longer horn you will sacrafice resolution and centering.

Mike.