There is a saying I used to always here my bulldog buddies say and that is "a good dog is where you will find them". Though I can find some truth in that I think getting your dog from a long line of dogs that have done what you want yours to do can definitely increase your odds of getting what you want, and then give you a much higher percentage chance of being able to breed that dog and reproduce himself or close to it. Just my two cents.
that is my philosophy as well...when breeding and keeping hunting dogs our goal should not only be to have all the dogs hunt and look as we like...but to also set your breeding program so that all keepers can contribute as breeders in the program and the long term goal...to produce a well rounded dog that is born from dogs that have been selected for natural ability...and to take to its line of work like a duck takes to water...
if everyone bred their dogs that way we wouldn't have many culls around...