tigerdrvr. thanks very much for that excellent response. I will re-bed the pads onto the new rotors.
raddad43,
I put only one event on them, but it was 3 days, and 6 hours of total track time. this is my 5th DE, 4th at Mid-Ohio, so I am getting braver. I was carrying my 135mph back straight speed DEEP into the braking zone all during those 6 hours. There are several hard braking zones at Mid-Ohio, most of them short, however.
This is the first set of Carbotech's I have used, so I have nothing to compare their wear to. I did compare them to a brand new unused set of ceramics I received today. different pad material obviously, but I imagine the amount of material is close to the same?
I actually have quite a bit more pad left than 1/2 as I originally posted. It's closer to 2/3's on the front and more like 4/5's on the back, so it's better than I thought.
My only other experience was with Hawk P+, and in my opinion, the Carbotech XP9's are FAR superior. I will continue to use Carbotech's. From following the racers here the other favorite is PFC, but those are $500 for a front and rear set. Since I'm not racing, $300 for a full set of Carbotech's is fine with me.
Oh, BTW. i just called Carbotech yesterday to order a backup set of fronts. Before I said anything Kevin there said, "let me guess, you have a Z06 and want front XP9's"....apparently the word has gotten out and they are backordered. Mine won't ship until next Wednesday....

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'04 MS Z06, NCM Member #26776, CAGS killed, C6 Z06 chromes, SLP Power-Flo exhaust with speedway tips

, K&N cold air intake, track seats right out of the Skunkworks Vette!, Pfadt adjustable anti-sway bars, DRM brake ducts.
Complete Vette Essentials Interior installed by the master himself-Ken King/you will never be forgotten