I think I should also mention that the two breeders above who I mentioned are farmers who aren't looking to improve the overall breed (ZOMG I know how awful
) but to improve their line and what they want from their working dogs. I think simply put they breed for themselves, not for the future of the breed, and not for anyone else. Selfish? Maybe. But once they die, their lines die with them. The vast majority of their puppies go to friends, family, and the neighbor's farm. Because the general public do not know of these breeders, one doesn't have internet but the one thing they both have in common is they don't advertise (LOL, I don't even know if they have a kennel name, and they certainly don't have a fancy registered name like my dogs).
Just saying, every situation is different. I wouldn't hesitate to go back to Holland and ask to get a puppy from either.
I think this is true to an extent. An unhealthy/unsound dog won't continue to work hard until 8-9 years old either (these are dogs that work all day long, 7 days a week) and won't do it without be physically and mentally able to do so. Bottom line is - these dogs actually prove themselves with hard labor day in and day out, and IMO, that is sometimes more important (again, hard core advocate of health testing, but I think in some situations, it's not the be all end all).