I agree. To say “the stock pads are inadequate for track use” as a blanket statement is not accurate. There are so many variables (driver skill/aggression on the brakes and track layout being the top imo) but for your first HPDE day in the car there is no reason not to try the stock setup, if you have the PUP brakes. OP: Change the fluid to racing fluid for sure, but the worst that’s going to happen if you’re super hard on the brakes is you’re going to get some fade. Then you’ll know you want to look at upgrading. I have UP front pads sitting here at home and haven’t installed them because so far I see no need. The stock pads held up fine for my second day this weekend. I did boil the fluid though and now my pedal is mushy (2 days on RBF600).They are absolutely just fine, i'm not sure why you say that? Many people at Tesla Corsa used stock pads and many others used either MPP or UP without any problems.
MasterC17- when you had issues with the stock brakes were you running stock fluid?