Have installed at least a half dozen sets over the last 5-10 years and have always been totally impressed with fit, finish and performance. Not so much with most recent set. Had to return one which had significant indentation on machined face. Replacement also had a defect on machined surface plus a couple dings, not to mention p/n engraved on edge was very poorly done with last digit not readable. Defects on replacement rotor are not bad enough for me to return and will not (IMO) materially affect performance. However, they do raise serious questions about quality control or perhaps a lowering of manufacturing standards. In any event, my next set of rotors will not be Centric Premium. Maybe I will go back to Raybestos AT or whatever is getting best reviews. End of rant.