I had the elines on my regal and moved up to the higher carbon content premiums on the Audi. I find R1 rotors to be amazing in many ways.
The elines have a coating and do not rust on the spline/end. The premiums do the same.
I didn't pay attention to how long the cross hatching lasted on the elines, but noticed it was about 20K miles before it was worn and no longer visible on the high carbon. I'm at about 30K on the high carbon and they don't look like I've actually used them. Ask around... I nearly gave Scott a nosebleed showing him R1 brakes.. lol
