[Steve Compton]

This may seem like a strange question - what kind of ball manipulator do you have? We ran into twitchy camera servos during our first regional, like you described, with camera off, even no power (having disconnected the wires to camera. Ends up that our ball collecting belt system created enough static electricity that it fed directly to the camera servos through PWMs. We added a bleed rod from the belt to the frame, sprayed the belt each time we used it with static-guard, and made sure to tape the junctures where we had joined PWM cables for proper length. End of twitching (for the most part - we still get a little from time to time but not enough to impact camera function.)

Hope this helps!