Chuck,
Excellent points...I hadn't considered the fact that flying rudder only on an aileron equipped trainer would be different from flying a rudder only plane.
As for being more difficult, as I said...i suspect that was partly because of the aerodynamics, and partly because of the inexperience of the pilot. I also suggest that having LEARNED to fly with ailerons, it was that much MORE difficult for an inexperienced pilot like me to NOT use them.
And I won't even TOUCH the rubber band thing...