If you read Kuewa's history, you may have seen that her hull and deck were laid up in 1973. There's a good chance Islander Yachts had just completed laying up the first two-thirds of the cabin /deck laminate in October 1973 when the Arabs stopped selling oil to the US, quadrupling polyester resin prices. I think Islander must have stopped work for a while, and when they started up again, they didn't do a good enough job cleaning all the dust off the partial layup, and probably started using less resin. The result is that the inner one-third of the laminate is not bonded well to the rest of it in a lot of places, and not at all in others. I've seen this all along the starboard side at every opening so far.
The fix for the 1/8" thick delaminated wood is the same as before: chop it out and lay glass in it's place.
I got the quote today from New Found Metals for the 12 opening ports, the equivalent of 5 months or so of cruising. But without them I couldn't go at all.