I've always thought that new, squishy tires wear pretty fast initially, and the wear rate slows down as the tread depth gets shallower. It makes perfect sense to me anyway. I've been cornering pretty hard on the new $1200 Goodyear cop tires I just put on my Tahoe PPV. Did the first rotation at 1000 miles, then I autocrossed it and now I need to rotate again all within 1500 miles. In my daily driving, which is short trips around town, just going to the grocery store is 14 turns in a 2 mile round trip. Tires last like 3 times longer rolling straight down the road. I've been a top-rated Tire Rack installer for over 14 years, and they know tires!!! Everyone I know, including myself, that is the first, and best place to find out everything you need to know about any given tire...