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Slogan are you running 29 psi up front and 36 in the back? I believe that is what Porsche recammends but I would play around with the tire pressure and go by look and feel since every tire has different sidewall stiffness, wear properties, ect. I run PS2's currently and run 33 psi up front and 36 in the back for both street use and autocross and have very even wear accross the tire especially up front. The inside of the rears usually have slightly more wear because of the negative camber which is how it's set from the factory so that is normal. Usually the lower the pressure the better the ride and traction, but you don't want to go so low as to roll the tire over excessively on the sidewall when cornering. I would play around with pressure some and try to find a good balance. You can run chalk accross the tire and see how much the tire is rolling over and where it is wearing. Make sure you check the pressure when cold so your adjustments are consistent.
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