I don't think it is fair to say "we won't be happy with you", but if you thought it was hard to find a reputable regular Yorkie breeder, it's even harder to find reputable parti or Biewer breeders I think? Just stick with the guidelines recommended here to be safe. I think you mistake concern with judgement. Many of us here, have actually bought from sub par breeders the first time and decided next time to do things differently