I took the Bullit to a bike park yesterday. Man, you haven't lived until you do a foam-pit on a DH bike!!! I had a great time, except the suspension is bad about sucking up all your momentum on the jumps, which makes rythm sections tough.
Anyway, back to my question. Sometime (more than once apparently) I did the shin-grind thing with my jagged platforms, so it's time to invest in a good pair of shin-guards or knee/shin guards. I didn't even know I had grinded up my shins until I left and saw blood all over my socks, now that's having a good time baby!!