Loop Battleboats Plus - now that would be interesting (and a longer game)

After you sink your oppenets ship, you can then instead of taking your turn to shot, place the boat you just captured back in play. AND what is cool is that it can be placed in a spot where your oppenet already shot - so a player would also need the ability to shot at the same square multiply times during a game.

Then since it is Plus, you could possible have 9 boats with 9 shots per turn.