Jeez Bob, I can only drive so much
Start out new = .360
Current after 3700 miles = .320
Used = .040
New estimated milage = .360 / .040 * 3700 = 33,300
So, it looks like the wear is slowing down slightly, but it's still on target to be a 30,000 mile tire (although that is obviously subject to change). So I'm going try to keep this up every 5,000 miles or so just to track the wear on this one.