Thanks Guys for the info
I'm using digital servos, hitecs. I change out the aileron servos and the problem remained. No change.
Always giltches to the right. I was running a pull pull system on the elevator, but am in the process of changing to a push rod. I thought the problem might be with the pull pull sys, so I moved the antenna wire out to the wing tip on one filght. No improvment.
The porblem is not limited to any speed setting. The one time I almost lost the plane, I was in the pattern to land, at about half throttle, when bang, glitch. Another time I just pulled out of a loop and brought the throttle up. And at other time just before touchdown. It's a handful, but so far, no major damage.
As for the xmitter, it's a JR8103, with 4 other planes on it that perform just fine. I'll keep trying. Either resolve the porblem, or loose the plane.

Bob