I too feel this is very important to under go this testing on my breeders. But lets not lose sight this is not 100%. My parents are tested so are the pups, now if I was to sell you breeding rights, that doesn't mean it can show up in future litters...It will makes the chances slimmer, but still not a 100% guarantee. Never the less it is still VERY important to have these test done...
As a breeder this allows me to stand behind my health guarantee and know that I am being responsible.