Good finds. We recently tried out one of those Micro T's on our street track where we usually race M18s and Micro RS4s by setting up some jumps out of cardboard, similar to what is shown in the second vid. They're fast and the jumping is cool. On our "pavement" (basement floor) they were horribly squirrely though in the corners. Probably there's a way to overcome that and then they'd be a blast for something different.