I hit that spot a couple times. The first time I chocked it up to getting used to shifting with my heal instead of my toe on the heal/toe shifter. The second time was after I tightened up my clutch so that I only have to squeeze it a wee bit to shift. For some reason I keep trying to make the fastest shifts possible just before my rev limiter kicks in. I even got the front tire to break free of the ground once. Not much, but it definitly came up off the pavement enough to feel it.