very true you need the right blood to be in with a fighting chance, thats why went for my pup both from good lines top gsd and top greyhound , but you still need that bit of luck with any pup that you pick As soon as you start waiting for luck in the breeding,well?.
That's a broad statement as with dogs horses foul and anything Else you can only put the best to the best and then hope for the best. As its been said before we are not dealing with robots or machines. They are all animals with there own brain and they make there own decisions. For me it's this that keeps interested in my hobbies.