So, to add, I bought my Z/Sport brand new in 2013. Now at 5 yrs/120,k miles of daily usage. It has seen a mixed blend of local suburban, BIG-city heavy congestion, and regional highway travel - including full seasons [Chi-nasty] winter use - all under a heavy foot.
This week I pulled up for my first clutch job. Nothing had failed yet (including the CSC), but I had experienced a very soft pedal feel starting up for the day. It would go nearly to the floor without much firmness & not much pedal travel with each gear engagement. I felt that I had pushed it as far as responsible.
I had a new (mostly aftermarket) clutch, flywheel, master cylinder, slave cylinder, clutch line hose, and shift knob (because my crew couldn't get the OEM knob off without the leather peeling away prior to twisting left) installed. Also a few bolts and gaskets (because they had to drop my exhaust in the process).
Hope another 100,k on this setup