ahh man, i tried to add [/sarcasm] to my post except using < and >, like it's html, so people would realize i'm kidding. and yeah, those blockers would prevent me, too. just wanted to show the most intense urban rail.
why would it be so damn impossible though... think about it.. theres two rails right there, if you slide it correctly.. itll basically be like sliding a box.. wouldnt be toooo crazy, just is a quite a few kinks...