After almost at year with a strange servo jitter that was taking all the fun out of my UAV hobby i finally found the source. A bad servo.
The jitter was intermittent and made and erratic +- 5 mm throws on the elevator or rudder even when i tried flying in "manual mode".
The little bastard finally decided show its real face today by giving a "full down" (and i mean FULL) right after start, giving my Easy Star a nice sucker punch right on the nose.
So, Turnigy S 3317 S. Your life was short and noisy, and you will not be missed.
I am moving on now and will look for a more dependable partner. :-)
I know some of you are doing UAV flying for a living. What brands of servos are you using?