I am thinking of building a board where I can put in four fins on the heelside, just like on the Slingshots. But also, I would like to be able to ride it with two fins on the heel edge.
Question: When you take out the two fins on the heel edge, do you need to close the holes from the screws? (I could imagine that to be the case, since it is where you edge) If so, how do you do it? I was thinking of making threaded inserts and putting in screws that are flush with the bottom of the board.
Thanks for any ideas,