I have a PD+ and string with poly around 63 to 65 lbs. I tried syn gut at 40 lbs for about an hour of hitting, then had to string normal for a upcoming tournament. I really liked 40 lbs, more power, more spin, and a killer kick serve for the first time in my life. Problem was the ball did fly a bit when hitting on the rise and the strings moved around like crazy. I like to take a pretty big cut at the ball. Would like to string lower for the extra pop and increased spin, plus the arm benefits. I guess the question: would you go poly or syn gut? (specific string?) How would you go about lowering the tension, just go to 40 lbs and make myself get used to it? (I have my own stringer so I can afford to fool around with this) And how long would you give it? 3 or 4 hits? (Is it love at first hit? I'm in like with it but not lovin it yet) Seems like most people with a PD+ string in the upper 50's? Thanks for any tips. Don't know if it will be worth it in the long run.