what you're asking for would change for every boat, and would also vary with racing
conditions. How I lay a mark in a flood tide is sure as heck going to be a different vector than how I lay it in an ebb. And the layline I was able to fetch with five crew on the rail probably won't work with half as much rail meat. Buy a new suit of sails
, and you'll change your ability to fetch a mark.
Sorry, you'll never replace a good tactician with a formula. There are just too many variables, and it takes a lifetime of racing to learn them.