Hi All - I just started stringing with a Prince Neos 1000. I'm pretty new to this so please bear with me and I'm not sure if I'm doing something wrong here or its just the machine. I would think I'm doing something wrong. Well when I tension the string, then tension head (jaws) always leave crimp marks on the strings. I don't know how to not do this. My procedure is, I put the string in between the jaws and crank. The jaws grab the string and tension it, I always get marks (crimping on my strings). Today I strung a racquet with a 16 gauge poly at 60lbs and the string snapped within 15 minutes. I can tell it snapped where one of the crimps were from the tension head. By the way it was Volkl Xplosion strings. However, I also noticed on another racquet of mine I strung with Volkl Cyclone and on a part of the string where it was crimped by the tension head, you can pretty much see the string is splitting. SO....I know I'm doing something wrong here, so can someone enlighten me on the things I need to do/need not to do? Thanks guys!