what he said was my pull/pull tension was incorrect.....so ive tried adjusting tension....l/r...slax/no slax...i use my fingers to duplicate full/scale tensionmeter....so far no luck...than I installed nelson 1 1/2 in bellcrank....so that pull/pull wires did not exit directly off servo.....balllinks-to prolinks-to bellcrank(double ballbearing)...pull/pull cables exit off bellcrank....it still didnt help.....the advice I got was when airload was on flt surface ...they will settle down...........what do you think....cause these are the most expensive servos....very pretty....ive bought......the rudder when I first power/up oscillate about 500 cycles a min...kelly