Hi all. I'm looking at adopting a long coat adult chi - I have two short coat ones already. Both of the girls I'm looking at are 20 months old but one has a rather skimpy coat and the other has a much fuller coat (looks like a papillon almost). Does the coat indicate whether one was well-bred and the other not well-bred? Or do coats differ among the long-coat chis? Also, by age 20 months is the coat fully grown in, like in the case of the lesser coated chi or would hers maybe still grow? Thanks.