I have 477 passes (with 5000+ launches) and 67000 daily driving miles on mine.
I had hundreds of runs on my c5 clutch as well.
Mods in my sig.
The key to long clutch life is proper fluid maintenance..check out www.rangeracceleration.com
And with mods, normally when you put in a cam, the pedal often sticks to the floor, removal of the pedal spring usually fixes that issue.