So I had a minor arm problem last fall after a long season, combination of tennis and golfers elbow. I changed racquets, did all the recommended rest and rehab exercises past four months and have only played my new Head Extreme Pro 2.0 with all gut at low tension. Just dropped her off for a string job of VS mains and TF Black Code crosses, still at low tension (baby steps). What can I expect for playability, spin and power difference? Wonder if my arm will get sore again?