I love Dirtsurfers, don't get me wrong. They are great for speed, but they are pretty hard to jump with and boardslide with. This video is the first one I have seen of someone trying to boardslide with a Dirtsurfer.
yeah, I'm sure strong ankles really come in handy if you jump and try to land with a dirtsurfer. You don't have as solid of a base as you would with a mountainboard.