[Perfectlap]

29F 36R for a conventional street tire as per Porsche.
26 and 32 didn't sound so bizarre to me given the ultra stiffness(make that super ultra stiff) of the sidewall.
Running a racing tire on the street with too high a pressure often results in excessive center wear but you're right the Porsche techs are probably told to dial in oversteer for the average P-Car driver, keeps them from getting into trouble.