I think the round thimbles let things move. Other than that, it appears to be a trucker's hitch - a demo with thicker line would help - arranged such that the bitter end is pointed back down and secured with a taughtline hitch, perhaps, doubled around for that funny finger loop and inexplicably leading to a bungee cord.
It seems like rather more adjustment than needed, much more readily changed adjustment than one sees in shrouds, and probably less mechanical advantage unless it's a very small rig.
A fun variation might be a compound trucker's hitch on the model of a Spanish burton.
I'm still getting used to the idea of modern synthetics that work as shrouds. Way cool but anti-intuitive to my mind.
|