the two hollow bars on my boat don't reach the middle, each one being only 8 or 9 inches long hence the slack. there are actualy two bungys so the one that tips the trap bars has just a little bit of tension. In saying this it is still possible to trapeze if either bungy breaks
Excuse my butting in, but how much of a gap do you have? As long as your bungee is tight enough for the ring to transition from one side to another also, it helps if the bar ends taper slightly to avoid any hang ups while transitioning. Your crew just has to make sure they don't hang on the bungee while in the middle of the tack.