I'm doing some research into building up a cross bike, and one of my top choices is the Planet-X Uncle John. But, the main issue I'm having is the fact that I'm considering going Campy, but the frame has 135 spacing. Is this going to be an issue? I know that I *can* pinch it down to 130, but I'm not sure if my options have any particular major pro's / con's. The main options that come immediately to my mind are finding a 135 campy-compatible hub (if that exists), running spacers or pinching a 130 hub, or just saying F' it and going shimano/sram.