Interesting wavey I'd like to see the fin setup as I think it might be a very snub nose directional as I think I can see a traction pad only on one end of the board Do you know who is making the board or have any other pic of the bottom of the board
Besides the board shape you can achieve a much better stance with the rotating straps for TT boards. And you don't need to have a knee problem to like the added flexibility of these babies.