I have a question for the owners that have used aftermarket rear tires on the RT. I have saw Pirelli, Khumo,Falken, Michelin, Yokohama and Federal mentioned. I haven't heard much said about how many miles everyone has been getting from the different brands. I am thinking of going over to the dark side and would like to hear how much mileage everyone is getting. Also, if I missed any brands, please include them. Thanks, Rudy