I have a vcore 100s had it strung with gamma verve 17 at 54 and it seemed a little too loose. So I had it strung up with the same string at 62 lbs on the same machine. OUCH! Talked with some players and they said if I laid the racket on the ground and stepped on the string bed some, it would loosen it up about 5-6 lbs without having to cut it out, spend more $$$, and restring. Anybody ever heard of this? Should I get a really fat friend to do it if I want to lower the string tension even more? How often should I step on the strings and for how long to achieve the desire effect?