I've been looking to learn how to grind on my MTB for a while now and rather than try to learn on things that weren't meant to be ground (Grinded?) on like pedals and sprockets I decided to bite the bullet and run a cut down rear peg with a solid rear axle. I've seen it done before in the movie Jib and a few random forums around the place and was wondering what the general feeling amongst MTBers was to the practice? Is it just a logical step forward in the progression of MTB street, or is it something best left to the 20 inch boys?