OK, I went to replace the headsail tack shackle and found all my replacement shackles have pins that are too fat. So back to the chandlery for an even smaller one.
...
But that's not the scary part.
I found the port D-shackle (left in rsvpasap's pic) was popped and barely hanging on:
(This is not my pic, this is rsvapasap's setup)
According to CDI website, that is the "halyard assembly" (C, E and F in the diagram).
https://www.velasailingsupply.com/our-b ... are-parts/
So, worst case scenario, my sail might have slid down, but I would
not have been dismasted, yes?
The forestay is SS cable, not braided line.
Yeah. OK. So I wasn't 1/32nd of an inch from being dismasted. OK.