lol...forgot to repost after I finally had my tires changed. In the end, I made it to 37k miles on the factories. Had free tires for life from the dealer, so I let them worry about it. Apparently, the factory tires were discontinued, or something. So they mounted four new tires they ordered from somewhere. Like I said, they were free, so I really didn't care what went back on. As long as they were within specs.