taking several measurements of the hubs that are usually not great quality... the reason that Nissan requires the rotors be turned on the vehicle is because of bearing run-out... the best way to beat this is to lathe the hub on a brake lathe, then marry to the rotor and turn the rotor... lastly mark your hub stud with a rotor stud hole and NEVER move it from that place until you need a new set of rotors on the car... then you'll only need to cut the rotors :)))