I'm a girls varsity doubles player, with a semiwestern forehand and two handed backhand. I occasionally use topspin, but most of my shots are flat. I'm currently using the Babolat Pure Drive GT strung with Gamma Live Wire XP 17. Recently, I noticed that my racquet feels like a wooden board everytime I hit the ball. Before, it used to hit very cleanly and nicely, even on mishits. I've put about 70 or so hours into the string and was wondering if that was the cause of my racquet feeling like a board. Could it be dead, or is something mechanically wrong? The stringbed still feels pretty tight, but there is a lot of string notching. I think the sweetspot has gotten smaller, too. Off center shots that would go in normally don't go in anymore, and feels like I'm swinging a board around. Also, can you recommend any soft multifilaments with good spin? I know about X-One and NRG2, but I don't have money for that. Anything under 10 dolllars a set please. I've heard of E-matrix, but I don't see why I have to spend $5 shipping on TW for it... I cannot play with regular synthetic gut, as that will cause shoulder pain.