I saw from some of the pics recently posted by one of the CT riders that one of the RSV's was shod with the new Metzeler Sportec M1's. I'll need new tires soon and my choices boiled down to the Sportecs and the Rennsports. I've heard lots of great reviews of the Rennsports but hadn't heard much about the Sportecs. I'm looking for feedback from anyone who has the Sportecs. Thx.