I'm guessing it was a combo of too nose heavy and to slow. At low speed your controls become very non responsive. On the next one you might try going back on the balance and keep the speed up a bit on the landing. From you description it sounds like you might have been more nose heavy than you thought. I have found that the manual is not always right on the balance points. I usually start with the recommended sittings and then adjust to my flying style.
Brad