My current setup is Gosen micro 16m@50lbs and barbed wire cross @ 48lbs on a blade 98 blx. I do not believe this setup caused it, I think it was a tour bite main, overuse and poor form on a topspin forehand that did. Things seem to be healing now with exercise/stretching but I don't want to upset it again and would like to keep a nice soft setup. The parts that were bothering me are the medial elbow and rotator cuff. .... Anyhow, I would like to do tonic-M/black widow-X at 55-53 since the strings are softer and as it is I think it is a little too soft. How long will this last before the black widow goes dead? Dose black widow loose tension or get hard as a rock? Do you think this is a good idea? I like a poly cross for snap back mainly and a bit of control.