Question: I have a Rear Spinergy Rev-X on my 2000 Specialized Allez Pro, that I am particularly fond of, and am seriously considering making the transition from Shimano Ultegra Group to Campagnolo Record. My problem is the fact that my Rev-X is Shimano compatible, and currently has a Shimano 8 speed cassette. My desire is to either switch over to a 9 or 10 speed cassette, but is such a transition possible in the light of Shimano/Campy compatibility problems??? Any input would be greatly appreciated. THANKS.