Well if u never experienced this problem before until after track day then most likely the csc is gonna fail soon. I don't think you had air in it before cuz u would have noticed it sooner. Mine did the same after TT install and bled the clutch over and over but once getting on it the clutch started to fail again. Let the car sit overnight and it was fine until few mins of driving. Had to get the upgraded csc n all that. Car shifts perfect now n pedal is strong. Good luck OP

Air is generated in the line by boiling the fluid, which at a track day isn't that difficult. If it works fine after then that is all it was, has happened to many people here.

Well that kinda sucks... So every time u track a 370 it's pretty much expected for ur clutch to fail?? Sucks.

add a tanscooler, that should help keep the transmission cooler when tracking the car

thx Chris, still no issues - -seems like there was just air in it since it hasn't deteriorated. I'll keep an eye on the fluid levels... thx for all the input...

after all this
Nissan problems I'm buying a Versa for my GF... :facepalm: