My theory is that once the fluid boils the first time, it is able to easily get 'around' and breach the seals of the CSC. Note, I have never held a CSC in my hand, just mentally guessing how it's built in my head.

Once the seals are breached the first time, assuming you don't have a catastrophic failure right there, right then, the seals are now significantly weakened and the CSC is on borrowed time.

I had the dealer replace the factory fill DOT 3 fluid on my 2020 with Motul RBF600 before driving off the lot.

We will see if the car having only ever been driven with RBF600 since new along with an annual RBF 600 fluid flush (summer driven car only) keeps the CSC in good condition.

Going on 1 month since getting the Z finally fixed. Haven't really driven her and put maybe about 200 miles so far. Been having too much fun with the new ride.

Going easy on the Z for 1K miles for the clutch settle-in period. Car has 41K miles and it looked like the previous owner had already switched the clutch (ACT I believe?) and also with a single-mass flywheel. Either way, swapped everything out with the ZSpeed Kit (CMAK/Clutch/Flywheel).

1. I can't say that I notice a difference, other than the clutch pedal engagement point being noticeably lower than OEM. Is this normal?

2. As the car warms up and driving around, the clutch pedal feels a bit "rougher" compared to when first cold-starting and driving. After driving about 30 minutes, the best I can describe the "rougher" feel is the clutch pedal feels a bit stiffer to push down and almost feels like it's slipping (but it's not and can change gears/drive normally). Normal?