Well, just for the hell of it I tried pulling aft on one rudder pedal while not touching the other when in flight. On my 15B at least the pedal springs don't deflect the rudder much at all at least at around 45 knots.

It was a day with strong lift to 4000 on one mountain and not much else anywhere else so in lieu of going anywhere I satisfied my curiosity about the rudder, did a number of spins and stalls etc. and finished up with a no airbrake landing - just in case I ever buy that ASW-12 I've always dreamed of:-)