I have a Silent Partner Swing (you know, drop-weight, floating clamps; nothing earth-shattering). I've strung lots and lots of racquets, mostly using Forten Sweet, but I switch it up occasionally. Recently, I bought a single pack of Pro Supex Maxim Touch 17, and I was able to string it up no problem. Then, I bought a reel of it (along with a reel of Gosen OG Sheep Micro 16) and every time I've tried to use the MT since, it's been slipping like CRAZY! It slipped so many times tonight, that I finally just gave up trying to string the racquet. I had the clamps so tight, I was practically crushing the string and it was still slipping. Why didn't this happen the first time I strung with MT? I cleaned my clamps not too long ago with rubbing alcohol, as per SP's instructions. I can't imagine they need to be cleaned before every stringing? The only thing I can think of is the additional Gosen I've been stringing with. Could it possible have some sort of a coating on it or something that, when I'm done with the Gosen and I move to trying to string something with MT, the clamps are slipping due to some residue from the Gosen? That's a total guess on my part; I have no idea. I'm just grasping for ideas here, because I totally don't get it. Any help appreciated.