Don, have you thought about using parrel beads on the loops you use on your main?
You said that you didn't like the knots. Thinking back to when I was water-skiing as a teenager, we used hollow, floating ropes, and made a loop by feeding the end through the outside of the rope into the centre about a foot from the end, and then slid the end further into the rope. Tension stopped it from coming out, or we could pass the end back to the outside of the rope and then feed the bitter end of the rope right through it, to stop it from sliding at all.
You could do that sort of thing, and combine it with some parrel beads and a toggle to make a quick-release loop, like my sketch.
For Pitthirrit, I'm planning on lowering the snotter below the foot of the sail, still attached to the wishbone, furling the sails, and then standing the wishbone up against the sail, using a strap to keep it in place. We're sailing again next Sunday if the weather cooperates, and I'll take a photo then.
Peter
After writing this, I wondered if there was anything about loops and toggles online, and it turns out that "soft shackles" are not new ?
Have a look at the video on https://www.yachtingmonthly.com/gear/softshackles-38323