Okay, I'm on the newer end of owning a Yorkie or even a dog. Another breeder e-mailed me back saying "Yes, It's line breeding, And they throw exellent show dogs." Are there certain questions that I should ask? Should this matter to me? Should I keep looking? I know these are all things that one could say I would need to make the decision on, but really I have no background in this, so I'm bringing it to the experts.