I have had tires wear out in the centre due to overinflation. However, i believe it was a feature of the tire in question. It was a michelin energy 205/55R16. There is a different tire on the car (bridgestone er30) and it is still wearing evenly while overinflated.
So i believe it is down to what brand of tire you have. However it may be the case that a 14" or 15" version of the michelin tire mentioned above might not wear unevenly while overinflated.
ollie
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