I still have preference to the Zimmerman Cross Drilled, they are very well made....having used 5 pairs of them so far (3 front pairs, 2 rear) and all have been perfect and perform extremely well....my dad's car has nearly 15k on them so far. You can tell the difference when doing repeated hard stops, they make a "booming" sound while slowing down when they get hot and do not fade like normal rotors do, in fact they seem to grip even harder! Though the slots in the PremiumOne work similarly.

My second choice would be the PremiumOne, they are excellent too.

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-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 118k - mine - (OC-123,800)
'17 Metris(VITO!) - 37k - wifes (OC-41k)
'09 Sprinter 3500 Winnebago View - 62k (OC - 67k)
'13 ML350 Bluetec - 95k - dad's (OC-98k)
'01 SL500 - 103k(km) - dad's (OC-110,000km)
'16 E400 4matic Sedan - 148k - Brothers (OC-155k)