Another tire wear/pressure thread

[dkl]

For those of you that have 285 or 315 rears, how do you prevent excessive wear on the center of the tire? It's strange that most people are experiencing excessive inner wear due to the inherent negative camber, but I'm getting excessive center wear on mine...same thing on 3 different sets of tires (285/45-19).

I ran 37-38psi on the OEM Bridgestone Turanza. It showed a bit of more center wear than usual, so I figured that may be due to the slight over inflation. So, on my next set of Pirelli Scorpion Zero Asym, I decided to try running 34-35psi. But to my surprise, the same thing was happening. Now, onto my current set of Michelin Latitude, I decided to lower it some more and try 32-33psi. Again, I'm finding a bit of excessive center wear on both tires. But something is more puzzling is that the passenger side is showing more center wear than the driver's side.

Alignment seems to be in check:
Rear Left: Camber = -1.9, Toe = 0.21
Rear Right: Camber = -2.0, Toe = 0.21
Rear Cross Camber = 0.1
Rear Total Toe = 0.41

Any insight into what may have cause this excess center tire wear would greatly be appreciated, especially why one side would wear more than the other when both tires are running identical pressure.

Thanks!