I have a few questions about Poly strings. For a little background, I'm not a string fanatic. I mostly just play with basic Prince or Gamma 16 synthetic gut. Occasionally, I might use TNT or Sensation, or something in that class. After I broke a string recently, I decided to give Poly a try. So last week, I had my HPS 6.1 strung with Prince Poly Gut 16 at 60 or 62 lbs (I can't remember which). When I initially hit with it, I absolutely HATED it. The feel was harsh and very stiff and everytime I hit the ball, it made a very noticeable "ping" sound. It was awful. I was very fearful that my arm was going to suffer using these strings. However, after the first couple of hours of play on clay (maybe 3 sets over two days), the ping sound gradually went away and the strings gradually, but noticeably softened. Is this normal for poly ? That is, initially stiff, then softens ? Once the strings softened, they played absolutely GREAT. The ball strike became more of a thump/twack instead of a ping. More importantly, the poly string seemed to give me great control with very good pop. The ball had the feeling of staying on the strings longer. Also, I'm usually a moderate topspin guy, but I seemed to get a bit more spin on the ball. Additionally, the strings seemed to stay in place even after I hit the occasional heavy spin shot. If I can get poly strings to play like this all the time, I'm definitely a convert. Is this how poly normally plays? I assume that after an initial loss of tension, the strings then softened. Do poly strings have just an initial loss of tension, or do they continue to lose tension over time? I love the way they play now, but I guess I'm concerned that if they continue to lose tension, that they'll become very springy. In any event, any advice about Poly string will be greatly appreciated. TIA.