Be sure to check out the Yorkie Coats, Colors, and Puppy Growth Chart Thread. It has a fairly detailed explanation; I had to read slowwwwwly!
I have these same questions and started a thread recently where people posted pics of their dogs and described the texture of their coats. The consensus was pretty much that bloodlines have a lot to do with, well, everything......and that both the look and feel of a coat are important in determining if the coat is silky, cottony, etc.
(P.S. Fuzzball is a great name!)
__________________ Heather &  Daisy |