As it has been previously discussed that by pre-stretching, the tension will hold longer. the drawback is that the repulsion will not be as good as normal stringing. my question: will a racket's frame be more prone to collapsing when u do pre-stretch stringing? for example, like maybe u can probably string 30lbs on mp100, but when u do pre-stretch stringing and 30lbs as well. the mp100 breaks.