I was reading something in another thread I can't find now where a poster, Mick I think, said he was a weekend player type and switched to a 107" frame from something smaller. He said that while he had less control of groundstrokes with the OS, it was better for overheads and volleys. Is this typical, that someone likes larger headsizes for volleys and overheads? I'm asking 'cause I use a 100" frame, and sometimes I hit a few too many off center volleys -- particularly when I'm hurried -- and a few off-center overheads as well. Should I be going larger? (I'm also concerned with arm safety, FWIW.) Anyone have any thoughts on this? I've heard others say you want smaller heads for volleys, but this guy seemed to prefer larger, and that would seem to make more sense to me -- more hitting space to help you get a racket on the ball in quick net play, so less room for error and mishits.