Quote:
Originally Posted by 911st
I have been hearing the SP911 guys are leaving the 930 set up behind for C2 front and 3.2 rear calipers both on 24mm rotors for the lower weight. There reported ballance has been very good without and adjustable system.
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The PRC SP911 guys cannot use 930 brake components due to the rules,...

Calipers are free but the stock (SC or Carrera) rotors must be retained. These folks retain the Carrera rear brakes without the PV to gain more rear brake bias and reduce some of the heat load from the fronts. LSD's make the car manageable but some experience is a real plus.
Given that "Necessity is the Mother of Invention", they make them work with close attention to cooling, choice of fluid and pads, as well as careful brake management during a race.