I have 20K miles and prolly 50 or more 5000 RPM launches on my Tex Ozz700 clutch and it still feels just like it did the day it was installed. It takes a lot of abuse, trust me, I drive my Z.

It's hard to push the pedal down. (didn't realize this until I bought a Camaro with a C5 Z06 Clutch and almost put my foot through the floor the first time I pushed the clutch in it was so easy)

The Tex clutch chatters a little if I slip it too much, but this clutch clamps really well while still allowing a little slip, and I've never had the pedal go soft. I have a bleeder and bleed it regularly and install fresh fluid and I'm sure that helps a lot. I will buy another Tex when this one expires.