RE: What does it take for a hull to be self-righting?
Build the Flood Chamber man, when I did the one on my ovalmaster 26 we spent a lot of time getting the balance right so the boat would self right in rough water etc, lots of bathtub testing haha!
once you have a self righting boat you can go to the pond and have a quick run without worrying if you will have to go for a swim or take a rescue boat...