Big Brother Magazine once had an article on the number of grinds it takes to get down to the axle of various brands of trucks. If I remember correctly, the least was 200ish grinds on Grind Kings. I think they were doing 50/50's on a curb outside their office. It was reminded me of the Tootsie Roll Pop commercial about "how many licks does it take to get to the center of a Tootsie Roll Pop."