It's probably good that I am reposting...I won't be quite so wordy!
I test hips through PennHip, eyes through CERF, cardiac only through my regular vet but hope to use a cardiologist someday, I did vWD through blood testing and then through DNA with VetGen, I am now using Pawsitive ID because of the variety of testing, including PRA for blindness, as well as color testing.
I tested Chase for SA, but don't believe it is a valid method. I test for thyroid, and before every mating I check for brucellosis (sp?) even if I use the same breeding stock. This disease is a really bad one for puppies and not many breeders routinely check for it because they think it is a sexually transmitted disease...but it can be transmitted a variety of ways and pups can be born with it and have no symptoms. One natural breeding with an affected dog and you ruin the healthy dog for future breedings as well as risk losing the entire litter.