Guys,buy yourself a ziroli DC-3,that puppy will teach you what rudders are made for.
Iv had the honour of doing a few hours on a full size L39 and the only time rudder is used is on take off,landing and taxi,that said however small inputs of rudder definetly make a smoother flight.
If rudders were only meant for taxi we would only have a steerable nose wheel.i was lucky when i started flying,all my training aircraft had so much adverse aileron yaw that rudder needed to be used,if not i would be fetching aircraft in the mielies every flight.