Eric had discussed his rudder oscillation thought I would post some vids of my rudder oscillation the last 3 planes Ive had have done this, the previous two I built a structure to bind the cables:

Well...trying to find a better spot for them....but they will be here under Rudder Dance 1 and 2 when available:

http://www.geocities.com/b.young8070...t/hobbies.html

I havent built a lightened rudder yet, my Impact rudder was 70grams out of the box. Previous planes were a convential foam core rudder. I tightened the cables on this one and the oscillation reduced but could still be set into continuos motion. Then I moved the subtrim off center and retrim with the tab and the oscillation would not continue.