My first impression: wow, this stuff is like wire! First off, I can't believe people actually like this stuff. It's very hard to handle and is tough to work with in tight spaces. This stuff better play like magic, otherwise I'm steering well clear of it from now on! I had two racquets strung at the same tension using Gosen OG SM 17g. Both had been "well-played." They both had the exact same sound when struck on the stringbed. I originally strung them at 45 lb., so I would assume that they were down below that tension since I could definitely hear a lower pitch after a few days of playing. Probably below 40 lb., I would guess. So, I proceeded to string up the SPPP at the SAME INITIAL TENSION (45 lb.) as the original string (Gosen OG SM 17). I expected it to sound higher pitched than the other racquet, since the other racquet had several hours of play time on it and the strings were Gosen, as I said. Well, lo and behold, the SPPP actually has a LOWER pitched sound when the stringbed is struck. Can someone tell me why this would be? I really wanted a TIGHTER stringbed than the other racquet, which is why I decided not to string the SPPP at the recommended 10% lower tension. But if my ears are any judge, I've actually got a LOWER tension than the other racquet that has had several hours of playtime on it already! The only thing I can think is that this stuff is so damn stiff that any small amount of slippage or "recovery" during stringing automatically lowers the setpoint tension at least a few pounds. Is it possible that I should have strung the SPPP with a HIGHER initial tension?