Re: Gumby suit vs. Wet or dry Suit
We carry "Gumby" suits for the need to "abandon ship". Practicing with them is almost fun. The grandchildren sure enjoy watching. We also have Mustang suits with harness that we can sail in if conditions require that kind of protection. The Mustang suits are warm and float. With their built in harness they provide a lot of security and comfort in rough conditions. Collars and cuffs will keep water out but if I were expecting to be bobbing around in the north Atlantic I would rather be in the "Gumby". Having the other things you would need for survival in pockets or attached to either suit is almost as important as having the correct suit.
We do not carry a a life raft when cruising within 75 miles of shore. Survival times should allow rescue in either of the suits. Having a radio, a PLB of some sort along and flares are essential, too (all waterproof and floating)! When we paddle in the open ocean both paddlers are equipped with them and we are wearing farmer john wet suits. Those exploits never get very far from shore. The canoe is equipped with floatation and we practice self rescue in that, too.
I can imagine hurrying to put on a wet suit in difficult conditions. NOT! The "Gumby" is the way to go if you are ditching.