I'm considering the mono mini pros for my xc race bike. I'm running an '07 xtr wheelset with xtr rotors right now. I think the hope calipers will work with the xtr rotors but chain reaction doesn't list a 6" rear rotor.....only 4". Is a 6" rear setup available? Is anyone running the mono mini pros with shimano CL rotors?

edit: I see speedgoat lists a 6" rear...but the price isn't as attractive as the chainreaction deal. I'd still like to hear from anyone running the hope/CL combo.