It is for the really light stuff when there is not enough pressure to hold the proper mast rotation or when there is some periodic chop by bass boats going by at 70 mph. Just to keep the wingmast from banging around.

I am going to try this set up first as it doesn't require a lot of permanent fixtures (no eye strap on the front of the mast needed). Additionally, I am going to make the "gold" line a bungy, so I "should" be able to rotate the mast without disengaging the rotation system (assuming I can get a strong enough bungy to work while stretching enough to manually tack/gybe the mast).

It may not work, but it seems to be the simplest system to try first.