I just installed the elevators with the pull-pull setup on my DP Edge and I am using a single servo as instructed in the manual. The control horns are shifted to the right (when looking from the tail) as the manual instructs and the servo should be offset to the right as well.

The problem is with both elevators neutral and the servo horn 90 degress from the servo, the each half is centered, but when I move to the extremes, one leads and the other lags. Any suggestions?

thanks
Erick