Yep, that's a big reason. Plus the fact that when you go out on track and 'abuse' the rotors and pads, you do wear off some of the rotor and groove it a little so it takes a while for pads to 'bed' in to this new surface. Imagine 2 records (if you can remember records) on top of each other. Each has small grooves so they won't be perfectly flat. It's the same for the brakes and rotors. Each has small grooves and it takes some wear to 'mate' them together. Those small spider cracks also reduce total surface area - that's why we always race with new rotors!
Man, with all this 'on top of each other' and 'mate' talk, I need a cold shower!!
Another thing is that you may have an air bubble or two in your brake lines. Just do a quick bleed on each caliper and I'm sure you'll be fine.
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Chris W. Ingle, Instructor: Chin/TracQuest, Car Guys...
2006, 05, and 03 Southeast Division T1 National Champ
2001 White Z06 SCCA T1 Racer #7
