Hya
I'd be thinking about the bottom contours
and taking everything from there
Veed nose will keep the stringer rocker reasonably straight but still give you a higher rail line - good for cutting through chop and stopping rail catch. And giving you a clean entry into the wave/
Same with a veed tail that will sit in the barrel niceley with less chance of the tail sucking up and sending you over the f alls when you are deep inside -also sits in the foam ball better.
Belly contours? Your choice, maybe flattish will stop you getting sucked up in the barrel - especially if you have a stiff ride and can't do minor adjustments ...
There's probably something to be said for a traditional slight belly concave splitting into a dual concave that bleeds around the tail vee,
Try a resin edge from about 14 inches from the nose to just in front of the fins - will give slightly more surface area and a clean break for the water to leave the board -
Eggish rail for the first 1/3rd of the board - if you have a lot of power in the wave then these won't be too much of a disadvantage I guess - and will help stop rail catch as well
You don't want to turn the board much? Maybe fins with nice wide base will give drive off the bottom amd lots of rake? Bear in mind while sitting in the barrel it's always handy to make minor adjustments and stiff fins, though they might give drive down the line, make it harder
to pick your line in the barrel.
5'7" by 23 inch maybe will do the trick - maybe 23and 1/2 wide, single flyer rounded pin? Dunno about the flyer - maybe it's just cosmetic....
hope this helps
EDit: thinking about the flyer.... having the flyer wil let you have a straighter rail line in the middle of the planshape - good for speed down the line - and still have a narrower tail. Try fluting the flyer/wings by taking some foam out of the bottom of the board to make the wings bury better - see Reno Abellira via Steve Artis for that tidbit.
see
http://renoabellira.com/surfboards/fish
also page 9 and page 11!
http://www.hotbuttered.com.au/attachmen ... alogue.pdf