Inflatable PFD'S, with integral harness,
may well keep you from ever having to inflate! I sail offshore, singlehanded, a great deal, and would not be without my Crewsaver "Crewfit". They do provide much more flotation, and I agree 100% on the benefit of the auto-inflate feature. There are quite a few manufacturers, and I would check for different models, as they fit different people, and men and women, with varying degrees of comfort. I searched for one so comfortable that I can leave it on, bare-chested, when I sleep......so I have NO excuse! An inflatable also leaves you with much more manueverability, and may actually help keep you from going over. They have been standard issue abroad, and on serious offshore racing, things like the Whitbread, etc., for years, although the USCG has only recently, and somewhat grudgingly, accepted them. Like most beaurocracies, they are inclined toward "idiot proof" solutions, but may not consider if the solution is so cumbersome that the "idiots" won't use them! End of rant.