I'm a high school/usta player. You guys are years ahead of me in knowledge...I need some of your recommendations about string. My current racquets are Head Microgel Prestige Midplus and a Head MicroGEL Radical. I have used and liked Technifibre NRG2 (16) for nearly 3 years and liked it. My elbow has only bothered me once in 5 years of tournament play, but I want a comfortable string. At times I hit a fairly heavy ball, so I now get about 4 hours of play from the Technifibre NRG2-16. What would you recommend I try as a quality, all around, comfortable string that might last a bit longer without sacrificing comnfort? I string my own, so I buy reels. Many thanks in advance.