I just put another set of stones on mine. I was right at 9500 miles but with a trip to the black hills last weekend staring me in the face I decided to change. I know if I wasnt going there I could have got 11000 out of those tires. I went with the stones because they worked good for me. I would like to know if anyone running Avons went back to the stones for any reason. I might give those a try next time. Al