an interesting concept, i tracked a dog to a good reputable breeder imo and asked why no papers or info on the dog available. it was a "test" litter. the breeder tests a potential female on her first litter to see what/how she produces and sells them under a different name with no papers at a low price but only sells to people that he can get feedback from. not sure how this sits ethically but he actually doesn't lie about anything.
same breeder effects a father duaghter mating some rare occasions just to "test" his lines for i am guessing recessive genes?
not mentioning names but he does back all his dogs and has great success but is this ethical??