I was talking to one of my customers today. He's an old time Mopar man (4 mint RCs, 2 mint Rams, assorted Hemi powered 300s from the 50s, owns a repair shop). He advised me to mount my new rotors on the hubs then have the rotors cut while mounted on the hubs. He said it had to be done to keep the rotors from wobbling as I may not get the rotors on the hubs flat. Makes sense. Has anyone done this? I've never heard this mentioned in any of the threads or How-Tos. Thanks.