I have been witness to many changes in the dog world over the past 35 years. From a young age, my love of animals - both dogs and horses - have been my life. I have trained, bred and shown horses to national level and I still do.
I have bred and imported dogs. My breeds were St Bernard's, Old English Sheep Dogs (showed briefly), Bull Terriers and now the Perfect breed - the French Bulldogs.
Many years ago I could foresee the necessity to supply a healthy good moving animal for people to enjoy and from past experience I could see that some people were not breeding healthy purebred animals (I believe lack of knowledge and nothing else to blame).
In the case where a champion is bred and the required strengths are obviously present, a test is for a dog to pass on it strengths consistently to its off spring.
In fact, the same goes for all proven bloodline's as well - to continue to pass on all the desired traits, if as individuals, they do possess those strengths, trial and testing is the only real proof of the level of their abilities. I believe that to know that the strengths of any good blood lines can only come from acquired knowledge and experience in this specialised field.