Hello, I have two Wilson Pro Staff Tour 90's in a 4 5/8 grip. I am looking for two Wilson Pro Staff Tour 90's in a 4 1/2 grip. I want to stay with this frame but need to play with the smaller grip. One frame is strung at 60lbs with Gosen Bio Gut Poly Multi, and is around an 8.5/10 or better (not sure what the standards are here... is there a reference?). The other frame is strung with Gosen HY Sheep, at 55lbs, also about 8.5/10 or better. Ultimately I'll send pictures of the frames, but rest assured that they are in pretty good shape. Your frames should be in similar condition, though I don't care whether strung or not. Will trade one for one or two for two. E.T.