Oh Mark... again... slamming the throttle stick from one extreme to the other... got full control of the rudder (edit -- I meant throttle) servo back. The rudder (edit -- I meant throttle) servo and it's linkage were all checked and in perfect non binding condition (and even the rudder (edit -- I meant throttle) servo replaced for good measure). So, AMC thinks I have a bad pot. And, I think Mickey got me, again. He keeps trying to get me out of the hobby... but I keep getting lucky.