Last weekend I was for the first time with my M5, Maus, and after the first lap behind a furious Ring Taxi has broken the front pads and has become compressible, with the effect of extending the range of the pedal and decreased much friction.
Do you know the pads from Pagid RS29 endurance as PFC08 or to mount on the caliper of the M5?
Here's lap where I had the problem