For the road I run 30PSI in my rear, 28PSI in the front.
My tires are okay to pressures of up to 35PSI by Sidewall reference.
This wears them evenly just fine.
For all you running PSI of door - umm, that's for STOCK tires -- just hoping you know that, because running a different size tire is definitely going to need a different pressure.
Also, running tires over the suggest PSI just seems dumb.