Ebb,
My new floor circa February. That Black ---- er, stuff holding down the old 1/4" fancy plywood was a real challenge to get off. The nails were just as hard to deal with as the aformentioned black hardened rubbery goo. I had to reglass the top of the 3/4" deck before putting on the new teak and holly. Save your pennies because the new 4X8 sheet of T and H really put a dent in my wallet. Found only one place in Houston to get it.