I pretty much only train pets on Dread Pirates. The Beetle and the Lesser Hiryu are 1 slots at the time I snapped that. The Reptalon had just advanced to 4 slot and got 20HPR . Dread pirates don't do enough damage to kill anything with 20HPR. 1 slot and 2 slot a pirate trains to 100% on one pirate 3-4 50% Per Pirate 4-5 25% per Pirate. Takes a Ship, heavy Cannons, Cannon Balls, heavy powder charges, fuse cords and some skill with ship to ship combat. But once you get the hang of it its fast, easy and very profitable. The pet training is just gravy on the biscuit