Thanks, I'll swap out the right rear servo when I get home. That particular servo does seem to twitch more than the other two when the battery is low, plus the arm is never 90 deg to vertical when centered. I can remove the arm and place it above the horizon or below it but never level.

I just about bid on a dx6 receiver (only) on ebay a few minutes ago but was able to show a little self control and hold off. Was at $43 last I looked. I also held off on an HDX 300 frame last night for about $40 after reading a little more about them. I can feel the wallet tugging on my pocket as I type.