Here is the J16 I am working on for my son. Most any poling platform is going to mount to a raised deck, gunnel, or transom. I cant imaging you would ever mount to the floor deck. That is where the water intrusion issue is. Most of the decks are either wood or a foam core, either of which could be sealed.
The platform is just sitting there now to layout for backing plates, prior to glassing down the deck.
The platform is just sitting there now to layout for backing plates, prior to glassing down the deck.