Fishon: That site is pretty good. I do some things a little different. (This is for Giants)First I harpoon!,Tail wrap (2), Jaw hook and tow forward. You can see the color come back in. Bleeding I do in the water, Sever the lat. Artery,(both sides), slack off the Jaw hook and rake the Gills with the Pike (of the poon) the fish will bleed out this way. When I bring the fish aboard (by the jaw hook and Winch) I will lay it on a Large Offshore Insulated Tuna Bag. Good side up, Not necessary for a fish your going to eat.
Do NOT remove the tail, Also no need to fin it. after the 4" incesion and the chute and gonads removed, Do the slot in the head and (straw out the spine) or Cut off the head or gill plate. reach in and cut out the Gills and liner.(Thin membrane that attaches the gills to the body cavity) Twist the gills untill loose and pul out with Innards attached. Wash out Cavity and skin (salt water) Load with ice and close bag. 1/2 Gallon plastic milk jugs frozen are perfect for this, they are smooth and don't hang up or tear the insides. Also they won't melt and load the inside with fresh water. I use as many as I can get in. They also help hold the shape of the fish for the long ride in especially if snotty.
Just my way nothing in stone, "works for me"
Also you are absolutely right about trying to keep that fish as fresh as possible, After giong through all that time, expense and effort you want the BEST you can get.
Don