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. Dunlop Bio 400T with cyclone @ 50, Prince CTS Precision 90
"Tennis isn't easy" - Corners