Have stock rotors and have been using Pagid yellows for 26 track days so far. Just replaced front rotors ( initial 30mm, min 28.4 mm, I was at 28.8 mm) as I saw some cracking around the holes. I was switching to my 3rd set of pagids ( averaging 13 days a set) and decided to switch them with the rotors. Front Rotor cost ~$615 from Turner as DIY.
Love the pagid yellows and happy with stock rotors and brakes so far.