With all the talk about having a float "Bob" on the top of the mast, why not an inflatable float on the top with tubing down to a CO2 cartridge or inflation device that you trigger if the boat goes over. You could deflate it after you right the boat.
Howard
There was a system like this. Inflatable ball at the top,tubing and co2 cartridge at the bottom. I don't think it was auto though.
