This sort of clear thinking is apparent throughout. The pontoons themselves differ from others, as much of the buoyancy is within the gunwales themselves, with less lower down. Again, explaining his thought process, Dean outlined that some pontoon boats, while virtually unsinkable, did have an issue with rolling over if swamped, and the higher up the buoyancy in the hull, the more likely it is to stay hull downwards if the unthinkable happens. Clever and simple.