Well, I've been patiently waiting for someone to bring up what I have found from experience as the weak link in this adjustable system. Your digression into the bungee tension aspects of the setup certainly was entertaining, but the reason I gave up on the adjustable system was the v-jam cleat surrendering at the most unexpected moment. Boom ... you teabag when you least can afford it. Stick with a single length system and let the skipper adjust (raise a couple of inches) the heel angle of the boat to keep you out of the waves.
Anybody else have this experience with the cleat?