Excuse my lack of seamanship, but if I don't ask I will probably wonder forever. I've had my DSII for over 2yrs. and have yet to find a use for or determine what that funky little ridge on the aft end of the cockpit floor is used for. It seems to be in the way most of the time. I was thinking it may be used in conjunction with a boom crutch. It doesn't seem to work with mine. Does anybody know? It is one of those things I often wonder about late at night! John