How many clear generations do you like to see orthapedically when doing a breeding?

I personally like to see a minimum of 3 on both sides but I prefer seeing 5 to 7 for my bitch and the stud dog. Am I being too fussy? Isn't the chance of ED & HD lower with each generation of clears?

I'm not mentioning TVD heavily but I do echos and expect that on the stud dog too. I then try to research pedigrees and hope for the best.

TIA for your responses.

I think you have to do whatever you are comfortable with. Per OFA, if I remember this correctly, every Excellent to Excellent pairing has a 10% chance of throwing a dysplastic pup. There is more to breeding than crossing each clearance off a list. I tend to look for a very solid pedigree of dogs from breeders have a good rep for sound dogs. Then I cross my fingers, do my "puppy dance" in the back yard at midnight and hope for the best.

But you can't discount multiple generations of clear as being insignificant if you are only looking at the closest three. I like to see clears, including low BVA #s as far back as possible. If you are only looking at the last three generations, hopefully, every offspring has been evaluated, not just a few. If only a few offspring have OFA's, then I would never trust 3 generations to be a good indicator of orthopedic soundness.