Stewart sponsers a ride day in Texas every year, cant remember the dates, but when he was riding Yamaha he showed up on a YZ250 that year. I think he perfers the 2S. Did you catch his comment about what he would change in Motocross " bring back 2 strokes". Seems to be a stand up guy again, think he lost his **** for a few years with his TV shows and that idiot french guy he seems to be saddled with.