Sorry, got busy and didn’t get email alerts for all those replies??
Anywhoo... I certainly learned a few things from all the posts. I’m thinking it has something to do with the spin down haul.
I had also considered it would be used to rig a stay sail, but wasn’t sure how exactly??
Thanks for your thoughts! Shannon
Shannon... regarding the staysail hook up.... mine, like most, has a wire sewn into the luff of the sail do you don't need to rig an inner forestay like you would with a storm jib... There will be a snap shackle at the tack which you use to secure the sail wherever you desire. You could have a padeye fixed to the deck, for instance. In some cases you might not want the sail tacked on the center line, but perhaps clipped down to the windward side toe rail.... or farther forward near the forestay... it all depends on what the sailor is trying to accomplish. Another decision is where you would want the sheets blocked. I've used a snatch block attached to the boom... to a bail or even the end... for broad reaching with a spinnaker. My staysail is pretty high aspect (i.e. tall and skinny) so I usually clip a block to a position a couple fee forward of the genoa lead on the toe rail.
Over time, I've found the stay sail most effective in very light air. I tack it mid forward on the foredeck track, block it as mentioned before and sag the luff a bit, allowing for a better entry, since it's not attached to a fore stay. The sail cloth weight is 3.5 oz and the high aspect shape allows the light air flow to stay attached to great effect. It's very cool to see it perform in a 2-5 kt breeze.
But...…… that said.... I've become lazy in my 70's and find I just don't want to go to the trouble unless I have a bunch of eager beavers who want to run all over the boat... heh, heh... so I usually just fire up the motor, drop the headsail and power on home...

some time it just isn't worth the effort... so the sail stays in the bag... but at least you know you have some options. good luck.