said by Rifleman:Don't forget that over-inflated tires are very quick to hydroplane on you while you are also accelerating the center wear out of the tires. Also the tires contact patch is smaller too from over-inflation which increases your vehicles stopping distance wet or dry.
Just drove the Sky Highway and Blue Ridge parkway. I had a blast and the tires perform great at 38PSI. My arms are sore from all the cornering. I DO notice a harmonic sound at 45--50MPH and think