The only way it would "snag" would be if one of the humps were bent out of shape, and if that happens, I have bigger issues on my hands than just it snagging on the pads...
I did test's years ago on full scale rotors, and the ones with more surface area on the edges kept cooler and had less brake fade. So I just threw them on the RR as well. Can't say that I have felt any differance, as I put them on before I even ran the bike. Anyways they are very bling bling, so its all good...
