Last track day I used half worn discs with part worn RS29 pads. Bite was good, stopping was good (squealing I could have done without). After that track day the pads were about half worn and the discs completely knackered. With the car in for service and advice to change the brakes I got the pads and discs changed for standard items and replaced the brake fluid with fresh racing (high BP) fluid. Saturday was my first track day on this set up. I was expecting poorer braking and more fade.
In reality, the brakes lacked the immediate bite but fundamentally felt like they had all the stopping power required and didn't fade. So, I'm questioning whether there really is much wrong with the standard set up. On Saturday my friend joined me who races historic FF and Ferraris (I'm saying this to add background to his observations, not to sound like a knob). I let him take the car round the track for a couple of sessions. Again, his observations on the brakes was that they did the job and whilst a bit of additional immediate bite adds some confidence when pushing to racing speeds / commitment, for track day use assuming you are not trying to beat every car out there, the standard brakes were fine. This being the first time he'd driven a CR, his overall reaction was that it was criminally good and to say it was unmodified (save the MPSS tyres) it was testament to the excellent set up Porsche have given the CR. A car you truly can use as an everyday car and then take it on track and really enjoy. Despite his strong leaning towards Italian cars he was genuinely impressed and starting to ask questions about ownership costs!
Just thought I'd throw this into the mix before it becomes gospel that in order to track a CR you MUST upgrade the brakes.