That looks familiar!
http://i15.photobucket.com/albums/a3...Picture001.jpg
I got the 3/8 marine plywood from my friendly sign guy.
I cut the 3/8" marine plywood into 4 x 4" squares, glued it down with thickened epoxy then covered it with 1708. I took the 1708 right to the edge of the cap both sides.You can jump up and down on the deck no flex after 2 years.
keep the pics coming.