I am building up a new front wheel to go with the new fork (06 Z1 sl). I was running a 6" disc (centreloc), bmx axle, w/ Xt hydro brakes [HTML_REMOVED] goodrich lines. The feel and modulation blew away my last hfx 9's! I need a new rotor anyway, so I am considering just getting an adapter to run 8". Has anyone done this upgrade or have feedback about the difference??