I may be a little controversial here
Whilst I agree in principal with all the testing etc, it does worry me that some people or prospective pet owners etc who don't have all the facts, will only go down the road of seeking pups/dogs that are tested for whatever.
What I'm trying to say is that we shouldn't be forsaking all else in the hunt for the dog with the perfect eyes/hips etc.
IMO there is much much more to a dog, whether it be a pet or a showdog.
I have had my Champion dog Optigen tested & he is a 'B' ie a carrier (As far as we can tell, as had been said this test is not 100%)
Now well known breeders, who expressed an interest in using my dog at stud in the past, will not consider him, even on their 'A' bitches - That's ok, no skin off my nose, as whatever else goes wrong with a litter/puppy is usually blamed on the stud dog.
But the advice from Optigen & from people such as Jane & KellyS, is to use these dogs, if he/she has the other characteristics that you like in a Cocker.
We are becoming too obsessed with the test of the moment, forsaking soundness in other areas & temperament - to me temperament should be the 1st & foremost consideration when breeding a litter - as most puppies will go off to pet homes.
I agree we don't want to burden pet owners with costly & emotionally wrenching health conditions, but look at the recent tv coverage of cockers, many won't be given the chance to live long enough to develop any hereditary conditions, if the temperament issue isn't monitored.
I have watched cockers of all colours at shows, in the last few years & I can see that there are dogs with dubious temperaments in
ALL colours.
Some of these dogs will be used over & over at stud, because of their Optigen status.
I would love to have all mine tested, purely for my own benefit, bearing in mind I could get a false reading back at the moment, but at £130+ per dog I truly can't afford to.
All this is JMVHO
Shoot me now!