I got a hole cut in the floor liner to find what is under the compression post and bulkhead. Pictures and description are at https://picasaweb.google.com/110938325409185510143/M23# Before and after Wednesday night races I was able to get a block of white oak epoxied in place for the compression post to rest upon. This took some doing but now there is a direct load path from where I am going to repair the deck under the tabernacle and the hull/keel of the boat. There was no support under the floor liner where the compression boards rested. But they were tied into the bulkhead which is tied into the ceiling and liner pretty well. I am convinced if the core had not failed this would not have been an issue but since I do not want to depend on the core repair being tied in as well as the original construction to the cabin top I feel better about building up the post support. Progress is being made! Robbin