Let's get back to the original post, okay??
The system does not work. The bungie will pull the trapeze ring out of the hook because there is no take up tension. You won't find any national or world multihull crew sailing with that rig. The pic of the Marstrom system shows clearly a take up bungie system. As long as the ring is pulling up into the hook, it will work!
Bob Curry
Been there, got the t-shirt, chewed the gum on this one!