So, every time I see a sport the rear discs look shocking, is it me or is that becasue the crud that acculumlates in the drilled holes causes undue wear by clogging the pads? I'm running brembo hc plain front discs & ferodo DS1.11 pads, hel lines, ate super blue fluid and really want to know what the downside of puttingt he 30mm bearing equipped DCI plain rear discs would eb & if anyone ahs actually done it with good / bad results. I plan to do the odd track day but not many so would like to match the brakes front/rear so pads options to compliment the DS1.11 would be good to know, i'm thinking the cheap mntex 1144 ones?