I think if you overshoot that possibly means that you have gone too far?
If we are talking about bending metal for our purposes then for me the extra pressure is down to experience and feel for the job at hand.
The yield point of metal is when it’s stretched and reaches the point whereby if you stop it will return to its original state. If you pass the yield point the metal will not return to its original state. Breakage occurs shortly after.
Hope this helps