Ericson was sourcing spars from Kenyon thru the 80's, and we have one on our O-34. I would love to have a two part hinged track closure of some sort also.
There used to be a pair of ss closure strips available from RigRite, but was a decade ago, and from what I could see, they were not meant for our particular section. They were screwed on and could not be hinged open and closed, either.
We could have used this tonight, as we needed a reef in for an evening sail and had to drop the slug-stop out to get the bottom two slugs out so the floppy ring could engage the tack horn.
It would be nice if someone finds the answer to this problem.
Cheers,
Loren