IMHO all that traveler get up was more show than function, like some sort of large yacht training simulator. My thought on emmulating that nowadays would be to mount a deck track along the cockpit lip rather than cluttering the cockpit space itself. I'll bet there's a self-tacking jib track out there for a ~16' - 20' boat that would be just the ticket. If I were rigging a SuperFish today I believe I'd go for 3:1 mid-boom sheeting on a ratchet block like we are putting on the lateen rig these days. That and a standard vang would make a simple and efficient setup. I think you are right, the "other sail" is from a Formula S. .