actually even easier make a 5mm longer spacer for the left side of the Big-Um and then add two 5MM spacers to you calipers... less stress on the frame that is for sure, (remenber when you "Compress" a frame the drop out follow the tubes, ergo they become mis-aling in reference to each other,,,aka not paralel anymore..)
PS: if you don't want it I will buy it in a second, those hubs are heavy but super strong and also they can be build 4 cross, what else you want,,,,,!?!? I have five of them my self and I want even more..
also remenber they feature a Five bolts type rotor that is only availalble from hope... so try to get the rotor with the hub if possible