I'm going to tell you what I would do in this situation. I can say from experience dealing with inconpatent technicians at the auto dealer I work at and lazy and incompetent techs @the harley shop I had taken my bike to in the past. Id Go get the bike, tell them you'll pay the original (I hope no more than an hour maybe 1.5) labor for installing the rotor and nothing more. Take the bike home and carefully follow John's instructions. Take it as a lesson that if you're going to do modifications to your motorcycle you'd better be able to do it yourself or don't do it. Dealer techs are trained to do warranty work and recalls not do custom work. Not only that, they don't want to... it usually turns out to be a no paying PITA