Everything can be a personal preference. I re did my boat back in 2001 and used marine plywood. Today if I was going to do the Best material for 30 + more years without re doing I would probably use Coosa on the transom but on the deck because of screws not through bolted on a CC 23 footer I would probably use two materials for the lamination a strip of marine plywood 8” wide closes to the center line for screwing the CC and T-top into with sheet metal screws and the rest of the deck your choice of composite material which would not require any attachments screws. I will be 60 yrs soon and only got approx 10 more years before I will be forced to let her go so the plywood will last longer than my owner ship will.
FellowShip
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My motto: Just for the Grins
