Agree with Black Hand.
I don't think you're understanding
The Wright's Coefficient.
It is an
idea, not a certainty. It is theoretical, not absolute.
Really read that blurb on there and it explains why.
Two littermates can have the same W.I.C. and one might be a spitting image of the dog inbred upon ... while the other may pull from a whole other aspect.
Same pedigree; same W.I.C.; two totally different gene pools.
On the other hand, the more absolutely uniform (and consistent) the whole litter is, the more you really have found paydirt for yourself
That is why
selection is always the key.
Not understanding this difference is why one guy will keep the quality in his line going, while another will lose it altogether and have the proverbial "paper tigers."
Most people who buy dogs and breed them have some initial success (and some don't), but after awhile they breed the quality and consistency out of their dogs, only to have to start over again.
Why? They have no real goals, no real selection criteria. They just breed "dogs that scratch" together.
Never breed tight, just to breed tight.
Never outcross, just to outcross.
Only inbreed on
the right dogs if you want to be successful ... otherwise you'll crash and burn inbreeding on the wrong dogs.
Only outcross if your line has truly lost something ... and only choose another line that consistently has what you need ... then select the best individuals of that line to utilize.
If your dogs aren't truly outstanding in some key way(s), don't inbreed on them.
If your dogs are able to win consistently, then don't outcross, keep doing what you're doing, selecting from within your own line to streamline the traits you're after.
If you don't understand what I mean by any of this, or can't be specific in your own mind as to what traits you want, you shouldn't be breeding dogs at all yet.
Jack