WOW! I'm feeling a little stupid now. You guys talking about RSII not coming in our size, made me go look at my tires and receipt. I bought these tires on line thinking they were RSII's and had a local shop mount them for me. Now I realize they are the Sportmax Roadsmarts. So I guess I could potentially have some of the problem tires. The rear is gone after 6000 miles and I don't want to take any chances with the front (starting to feel a little shake in the bars). So going to buy the Mich PR2's. After talking with several other local riders, most think my rear tire wear flat in the middle down to the cord was due to the 113deg desert heat. Road was probably 125deg and the Dunlops have a reputation of not holding up in the heat.