I started using increased tire pressures in 1980. That's the year I attended my first drivers' school, and the first thing they required all drivers to do was increase front tire pressures to the sidewall max. This was done for safety, so no one broke the bead seal in the hard cornering that was the purpose of the school. The explosive decompression of a tire when it comes off the bead is frequently followed by a roll-over when the bare wheel digs into the asphalt.
I soon learned that was just the starting point. A little white shoe polish on the edge of the tire let you fine tune tire pressures so all four wheel had the same grip. I drove for years at 44 front, 35 rear, as that was my optimum. Eventually, I just brought the rears up to match the fronts, as a RWD car with a little oversteer is a lot of fun to drive.
So here's my tire wear as of November, when I did the OEM/snow swap. I measure 9 points, IB-C-OB at three locations around the tire. There's a wiggle in the OEM data because I replaced a tire the second season, so I'm only tracking three.
Tire wear 1601.jpg 18.12KB
Given my driving style, I'm not complaining about a ~40K projection for both tires, which have been inflated to their sidewall rating since shortly after I inherited the car at 8K miles.