OK, let me tell you my situation: Yesterday my coach told me poly was a ****ty string and I shouldn't be using it. I started using it after my strings died really fast (within a week or two). I don't necessarily break strings, they just die on me fast (I think it is because I hit with a lot of topspin). My friend then reccomended poly. I don't think it was a bad pack to blame the dying strings, because that has happened with Wilson Stamina and NXT. My coach recommended me a textured string called Topspin that comes in a 15L gauge. First off, what string is this, because Topspin Cyberflash and Cyberpower don't come in 15L, and second (once we figure out which string), how does it play?