Relatively minor sugery.
Poor fitting of the spray dodger frame some 15 odd years ago led to a small soft patch in the cabin top.
After thinking it through a bit, I decided a hole saw was the appropriate response. 4 layers of 6mm ply fills the holes, all now epoxied into place. Yes, the segments were alternated for seal and strength. The dry images are of the dry fit - once fit test was done, they were coated both sides with epoxy as the went in.
Each ply insert is 64mm diameter, so not a big area.
Tomorrow is boatcloth and more epoxy on both sides, paint next weekend,