I did not realize it when I bought the boat ( I bought it primarily on purpose, condition and cost ), but later found out it is cored with Divinycell. I know Giu would be happy to hear ( I read his thread on construction of his magnificent speedster), but what is the general consensus on this as a construction material back in 1990 when this boat was built?
I have not had reason to access the hull, but I have replaced the solar vent fans in the cabin top and it looks like this is also cored, I assume with the same material. Looks to be 3/4 inch thick with a sandwich construction. All I can say is that it was hard as H*** trying to modify the openings even the slightest.
Alright, I don't really expect a consensus, but maybe at least a few relevant (and a few irreverent) comments.
Ron