I'm refitting hull #3000 and after removing the combings for refinishing and cutting down I found that the carlins, or the structural supports the combings fasten to have dry rot in them. It seems to be fairly significant because I can almost crush the fiberglass laid up around them fairly easily. That and the screws holding the combings on were not being very secure.
I injected some git rot through the screw holes from the combings, but I'm not at all sure of how much of it penetrated the rotted wood back there since I can't see it through the fiberglass layers. It does seem a little stronger now, but there are still some open voids. I was considering injecting some thickened resin through those holes to fill some voids but I'm not sure how well that will work. Has anyone solved this problem before, and what did you do to restore the strength of those carlins?