Wow. I think I would have just put a quick release on my mainsheet and disconnected it whenever the table was up!
John, if you look at that mainsheet setup, it's got 3 attachment points there on the traveller and its base (the swivel cleat block, the traveller car, and the fine tune) so the quick release is likely not that practical. It is a novel solution to his problem.
Thanks for the link, Marty, but our traveller is not quite so in the way, and we have a quick release. Also I'm not thinking wood.
As for Starboard, I'm a bit concerned about the weight of it... I've seen a table like what I'm envisioning that I think was made of the HD polyethylene - the stuff that those white cutting boards are made of. It has a more pleasing finish too.. Volkhard, I appreciate your experience and comments and may well go that way - Mainesail's Starboard pedestal shelf looked pretty nice but it was fixed so the weight is less of an issue.
If you're going to use folding leaves, consider adding some kind of support for the leaves other than simply the hinges themselves..... I plan to add a pivoting cross brace to the bottom side.
Thanks for that, too, JR, good idea.
Anyhow appreciate all the responses, keep em coming.