It sorta scares me how hard that mile marker sounded when it whapped the car -- knowing that I went through one of 'em (4 1/2 mile) on the long course, at about 200 (199.586 in the previous mile). I've still got black and blue bruises on my pinky finger where the clutch lever slapped the finger between lever and handlegrip, and a few other marks, too. But the marker you hit sure looked and sounded harder than the one I went through -- or maybe it wasn't, but I was really lucky.
I promise to pay better attention to where I'm going.