@tanza:
You quote "3.2% of those tested"…. there is the rub.... OF THOSE TESTED. If you don't test, you don't know
With the completely subjective qualitative test we use now, even WHEN tested, you don't know; you are not testing for genetic markers.
Are we all clear on this? The test you are doing only shows if your dog has bad hips. It does not show if your dog will pass bad hips to offspring. In fact, more than half the time, YOU are giving bad hips to your dogs' offspring.
If we are going to continue talking about this, I need to be sure we all understand this. I come from a background working with dogs that DO have a very significant rate of CHD, and this is a subject that means a great deal to me. I don't want to come off like I'm being combative for the sake of being combative, here. Good hips are a BIG DEAL for working animals, and the people who taught me everything I know about dogs depend on their canine partners for their actual lives, in reality. Not just economically, I mean, actual life-or-death situations, where, if your dog is slow to the strike or his limb collapses under him, you might actually die. Structural soundness means 100% of everything to me. I want to be expressly clear that I care very, very much about how to breed and rear a dog with good biomechanics.
The test we are currently using does not screen for genetics. It doesn't screen for functionality. Its results are certainly variable according to the skill and/or shadiness of your vet. We know that somewhere between half and three quarters of CHD is "caused", rather than bred. The <4% incidence rate in this breed is ABSOLUTELY within range of "environmental co-factors". Hell, ~3% is a reasonable margin of error, period.
Yes, it is certainly your "right" set your own standards for what YOU do, and what you advocate for. That certainly leaves plenty of room for my "right" to point out that some of your standards are unnecessary and may serve to bottleneck your gene pool in ways that are not beneficial. It's also most certainly my right to vote with my wallet for the practices I support. I do not MIND if someone wants to have their dogs' hips X-rayed. But really… put it in perspective. They did just fine for 13,000 years without first-world hobbyists x-raying their joints.
The dog fancy is dying from a thousand cuts right now, and most of those cuts come from you slashing at each other. If you want to retain the right to keep breeding your dogs, you are going to have to stop cutting each other down. I'm just a pet owner that wants to keep being able to buy dogs from practitioners I respect. I don't mind that you encourage people to do their very best to improve the health of their dogs, but I do mind when it stops being a reasoned choice and a discussion about allocation of resources, and starts being a weapon you use to attack each other.