Currently have a 336 and replaced the cushions from St. Augustine Marine (Beautiful job and very easy to work with). Had them make cushions for the 336 based on the pillow back design of the 340. Question: How does the top wood strip (~1.5x.5") attach to the bulkhead? Do the snaps on the lower pillow cushion go under the top cushion and attach to the fiberglass or the wood? Any insite would be helpful. Thank you, Bryce