waylon, here is how i figure to get the % of a particular dog say my Earl dog. i bred Earl to Spider that produced Lady Bug 50 % Earl. i then bred Lady Bug back to Earl and produced Candy 75% Earl .. okay, then i have Jr also out of Earl and spider i bred JR to saddie outcross dog,and produce Taz then breed Taz 25 % Earl back to Candy 75% earl. well each parent is 50 % of the eqation so 1/2 of 25 is 12.5 and 1/2 of 75 is 37.5 .. so 37.5 plus 12.5 = 50 % ,, thats your pups linage by the way and how i got to 50 % blood of Earl.. now my next plan is to breed one of those 50% earl pups back to a daughter of earl out of the same outcross gyp and continue to produce 50% Earl blood.
this is the same thing that was done in the foundation horses to preserve a individual horse say poco bueno..
i could have told you that hancock - king ranch cross wouldnt work thats like breeding one of my dogs to a poddle.

sorry im not a fan of hanckock horses, i never have a headstall big enough for one of em either..