If you look at the Pedigrees you will see these dogs are line bred for generations. When this is done you pretty much know what you get. The traits do not just disappear unless the dog you are breeding is not typical. These dogs are strong bird finders with good noses. That is why they win. Just as they have been for generations. Does it breed on? If it did for the past 20 years why would it stop in one generation. With line bred dogs you pretty much know what you are getting where as when there are many different lines in a pedigree there is a lot of question to what you will get. I like to take my chances on something proven.