while doing some research for you on the vette board I came across this post, which has some info about the z51 rotors which is similar to what I said about the Z51 rotors;
"I have 8 track days on my Toyo and they still have half their tread left.
With the PFC pads ($400 set F+R) since they are so aggressive you will go through solid non drilled front rotors in 6-16 track days. Original equipment rotors for the Z51 are around $100-115 ea. Most track dogs convert down in rotor size to the base non drilled 12.8" instead of the 13.4" drilled rotor. You can buy napa "base 12.8" rotors for about $25 ea. The brakes on all C6 are virtually the same(Z51 has smaller pistons on the rear but uses the same caliper) only the Z06 being vastly different."
and I ran across this also;
"The directional cooling vanes on one side of the Z51 are pointing in the wrong direction, so they are trying to scoop air in while the spinning rotor is trying to throw it out. Someone recently reported an increase on the right side by 30F when racing on the track."
this is all just internet gossip but sounds believable to me.
I'll see what I can find about the pads, I believe carbotech makes a good C5 pad. Heard nothing but good things. Not sure if Ferrodo makes car brakes, but they are really Killer pads
Heres a good thread about brake pads, but rememer you don't have ABS, you have way more power, and way heavier, but still should be some good reading for you, if you get that AFX spindle, which only takes corvette brakes, so it should be good to know whats out there;
http://forums.corvetteforum.com/show...ight=z51+rotor
and Nitro, what you said is right on, I am no expert, and am no guru either, but I have done a bunch of research, and am just trying to relay the info I have learned, not claiming I made any of it up, or am some expert. I don't think there is anything wrong with that