I tell ya how you can tell what am saying is true . Find any great breeder of dogs are any person that has good and great dogs and been doing it for a long time and look how he breeds them . Note He will not hardly go off his yard to breed to anything and will not breed to another dog just because he is a great one and will almost NEVER go off his yard UNLESS he is in dire need of fresh blood meaning a cross and then he will go right back into his yard for the next ten years !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
the folks that get 80 to 100% good pups do it this way...but doing it this way is only half of it...the other have of the equation is to pick the right dogs for breeding within the said family...