So here is my review of the Wilson Prototype string. It was fairly easy to string because of the smoothness. I'm assuming this is a 16g string. I'm a 4.5 NTRP level player that utilizes heavy spin and play almost exclusively on Har-Tru. Tension it is strung: 60 pounds on a lockout machine full bed Your regular string set up: Discho Microfibre 16 Racket: Pro Kennex 7G String pattern of your racquet: 16 x 20 Power (or lack there of): High powered multi Feel: Average feel for a multi Tension maintenance: This is the big weakness of this string. The tension off the stringer was 50.4 pounds according to RacquetTune. The final tension reading I got was 43.9 pounds. It's possible the smoothness of the string allowed some clamp slippage but who knows. Bottom line is that tension is just too low for a multi to play well at. Overall comments and feedback: See below General: This string looks like a high quality string. I had high hopes for it but in the end, the power is just too much for my long loopy strokes. Serve/Return of Serve: My serves were constantly under attack with this string. Return of serves was just plain bad. I missed way too many long. Strokes: The spin of the string was around average for a multi. Depth control was horrible. The ball was constantly going past the baseline. Volleys: It's OK for volleys, nothing outstanding. Touch shots: Drop shots and touch volleys were about average for a multi. Softness: This was a stiffer multi. I would not recommend it to arm sufferers but for those coming from polys, they may like the feel better. Tension: I wish I would have strung this up a few pounds higher. Durability: I got 7 sets of singles and 1 set of doubles before it broke at a cross. Movement: String movement is minimal at first but after a few hours, both the crosses and mains slide around a little bit. Conclusion: I just felt like it was too powerful for my liking. This is a better string for those with compact strokes desiring some pop or perhaps those with a very flexible racket. The stringbed was too unpredicable for me. I can't think one one aspect of this string that I like better than my current favorite multi. I would not buy this product but I'm sure there are others who would like it. Thanks TW for the opportunity to playtest the string.