I have used these pads on my 2011 3400lb Mustang (no driver/pass) for 2 full races (4 days total track) between 2 drivers. with sessions of 20-30 minutes. There isn't even a hint of fade on my setup with 4-piston 14" Brembo brakes, but I don't use e-sitter either. I see in another review that a reviewer mentioned that the front drivers are harder on the pads, but I had the opposite experience. When it comes to braking for HPDE, novice drivers tend to over-rely on ABS and stability controls, and