Lukhas
Legend
I fact you're the first person I heard about who does not pre-stretch multis. Really. Multi tries mostly to mimic gut attributes. We already know what happens when you don't pre-stretch gut, and "pure" multis like TGV or X1 Biphase tend to act the same. They are very soft and drop tension quickly after the stringing, and maintain tension well until breakage. Of course it ain't gut. And since it's also very soft, one may dislike the likely-to-happen trampoline effect. It also allows to string at lower tensions without having a very soft bed after some hours: the string holds its initial tension better, and isn't a wooden plate just after the stringing either. One should look if the string wasn't pre-stretched in the fabric beforehand though.Just as a matter of course or do you have a reason?
On the other hand, s-gut (with a core) and multis with cores (Prince Premier Attack, Technifibre XR3) shouldn't be pre-stretched due to the presence of a core. It kills the string, and the core already helps the tension maintenance off the bat, so it is kinda useless. Now, guys like Federer pre-stretches ALU Rough of all poly strings, so it isn't like nobody ever does it. Now, he clearly hasn't the same issues about stringing as the rec level players too... :lol:
[/2 cents]