Replacing SBP Rotors

I will take pics for sure as I get through this process. I've never assembled a complete brake system before! I have not found a definitive answer yet but I was told by a guy I work with that the slop is not a concern and that when I bolt the wheel on it won't be a problem. I keep imagining the rotor shifting under braking pressure though. I'll go by the parts store this weekend to see if I can get snugger fitting studs. I do have the old rotors so I'll take a measurement of each hole to see what the difference is. I'd hate to have to spring for another set, especially when they seem to be fairly scarce.