I just strung this string up in my Head Microgel Prestige Midplus @ 54 lbs. My racket is customized to 12.1 ounces. As far as my playing style goes, I am a #1 Varsity Singles Player for my HS and I am a All Courter. I love being agressive from the baseline. STRINGING: I string this poly up in my mgpmp and it did not kink easily at all. It was an easy poly to string. The string was not very elastic. Weaving was average for polys, it took me 25 minutes to string my racquet on a constant pull Machine. GROUNDSTROKES: Spin was very easy to generate and I loved the consistent feel I had from it. It had great pocketing and the string bed wasn't too firm. Compared to my last setup which was pht 17 @ 54, this string had more control, feel and comfort on groundstrokes, just wish it had a tad bit more power and spin capability. VOLLEYS: Very crisp and controlled response. I played a 3 set doubles match today because I am playing doubles in the league tournament tomorrow planning on going to north coast sectionals. During my doubles play, i had a very comfortable and crisp response and it had enough power to put the ball away, not too firm. SERVES: This string truly shined on first serves, Comfortable and lots of controlled power. Everytime my doubles partner signaled me where to serve, i hit my first serve there 70% of the time. Very satisfied. TENSION: I had a pretty good day in my tournament today. I played again with the hyperion for the 2nd day and no noticeable tension loss. Above average for a poly. ADDITIONAL COMMENTS: After my doubles match, I rallied with a 5.0 rated male and I was very comfortable with the strings. Lots of control and no pain at all. Was having rallies of 20+ shots hitting hard and I can really rip the balls hard with spin. There were shots at my ankles that I hit as hard as i could with spin and it landed in. The tension has held up great so far and I will comment on tension tomorrow again after my tournament.