I had a brief hit with what I think was one of these last night.
Seemed to be standard length, was quite nice on volleys and groundstrokes and then I tried a serve.
Monster power, but sent pain shooting straight up my arm all teh way to my shoulder from just the one serve!
5.0 all courter. Back with the Dunlop Bio F2.0 Tours fro the summer
"Tennis isn't easy" - Corners