Hi Mr Matt;

I respectfully disagree that balanced surface w/o a push rod will not oscillate at our jet speeds. It is the turbulance and drag/lift of the surface that will cause what we call flutter of our control surfaces. I BELIEVE that even full size fighter jets do not have their control surfaces STATICALLY balanced like we do our models, they are of course computer and hydrolically controlled. I maintain that at subsonic speeds, stiff hinged and controlled surfaces are the only practical requirements, then again here I am at 3:30 am with my son screaming for milk....so what do I know!!!!!