I was lucky enough to go to the press launch for the RT and ST, and rode the same models back-to-back with different tires. I forget my exact conclusions but they're in the OTL from maybe April of 2005. The Pilot Roads were hands-down the best. I think I started off on an ST with Dunlops and really wasn't having fun. Partway through I switched to an ST with Michelins and it was night and day. When we swapped models midday, I made sure to get an RT with Michelins. Later in the afternoon one of the other guys was complaining about his RT so I talked him into swapping bikes. Same observation from him (Carrithers, Motorcyclist mag, I forget if he mentioned tires in the review but I sure did).