The more I look at it, the more it looks to my eye like the plywood was original. First, the deck had to accept the limited two-way bending plywood is capable of. Most planked sneakbox hulls won't allow sheet ply to conform suggesting it was designed to do so. Second, unless all timbers, transom and sheers were replaced the screws would have had to hit the old screw holes precisely or there would be a second pattern of holes. I guess it doesn't really matter though. However you choose to replank it, I'm sure it will be a great renovation, as you are a superb craftsman. [smile]