I think lane splitting is retarded at high rates of speed, but in dead stop traffic, i HAVE to lane split, because my CBR doesnt have a cooling fan, so if i dont split the lanes then i overheat, but on my zx6r, it has the fan so ill still only split lanes if its in dead stop traffic, but even then im hesitant becuase i have actually had a guy in orlando try and pull in front of me and cut of the middle lane because he was being a dick.