Originally Posted by Francesco
Yes, that's what usually happens. Slop in linkages is typically not a factor. One of the problems, as someone on RCGroups pointed out, is that we generally use very thin gauge wiring, and so the servos "thirst" for current cannot be adequately quenched.
This paticular plane has robust (and heavy) wires.
The video was taken at the end of long flying session. And I use simple 4 cell eneloop rx-batt. With freshly charged battery it might have not looked quite so bad.