I carry a 6ft piece of thin wall ¾ alu. pole that is sealed and foam filled so it floats. I use it for polling, knocking down a stubborn rudder, a handle for pulling the boat on wheels long distant, holding up the center of a tarp, and self-rescue.
It has a collar that I made from industrial heat shrinks to keep it from sliding completely thru the cat tube. Used as an aka I then clip my throw able class IV cushion for an ama on the end.
The cushion rides in front of the seat and is used for a leg support at times and a table to keep things off the wet floor. It is also a seat at shore stops and a flat place for my JetBoil in the boat.
I also have a ¼ in line that goes around the cockpit with the bitter end having a loop or stirrup. Whatever it takes to help an old guy up. Muscle coordination and agility suck after days of long hours and I only want to try this once if knocked over.
Gear adds flotation and reduces the amount of water your hull take on. I can remove more water with a bailer then a pump pluse it has more uses for a boy. Use a heavy plastic like a gallon Tropicana orange juice jug. NO thin gallon milk or water jugs.
Make sure your boat does not get away from you, and as for the lee side or the wind side, you will have to figure that out. This will not be the calm shallow stuff you practiced in!
I have been knocked over by a sweeper in the dark and the temp the day before was in the mid-twenties and I know of another triber knocked over in a river. Change of clothes and onward. Verlin lost his Loon in the Pacific once, a Crusier went over in a pass during an EC. and Chief and Sandy Bottom have swam with their Dreamcathers. So it can happen.
Always watch the wind in class 3. If it is clocking and you are off shore like the run from Sanibel to Marco you will be a long ways out in a short time. Suck it up and reverse course if you are too tired to paddle against the wind. I can rig a sea anchor from my seat and retrieve it! I have no desire to visit Mexico with my Kruger. Know your own boat and do what works for it and you no matter what class. Ya gotta live and finish to get a tooth!
toby