When you panic, you over compensate on the sticks. Too soft of a center, you keep moving (or jerking) the stick too much until something happens, thinking more is better. As a full scale pilot, you know more isn't always better. On my normal flying rates, I never use more then 10-15% expo, and cut the throws down.

This is why on full scale planes/jets there is a manuvering speed. At or below that speed, full deflection of the control surfaces won't cause structual damage or failure. Above that speed, you are asking for trouble. Same on a model.