JeanieK & Lacey's Mom, You were most helpful. That last site you posted, LaceysMom, really was great. That pretty much gave me what I was looking for.
As to body shape, I think Little Bit is pretty square 7 1/2 inches tall & long but she looks tall to me. Her features are very delicate and if she weighs 2 1/2 pounds at 4 1/2 months, is her height out of proportion to her weight?
I had a Yorkie a long long time ago and he was bigger but also proportionately shorter & longer, I think. Of course, he probably weighed 10 lbs and his ears never stood up so that isn't what I am aiming for. I'm really just curious. Also, I think I read somewhere that they may grow in spurts & not necessarily proportionately as puppies. I mean like maybe they would grow long for a while & then grow tall & such. Is that true?
Sorry for the imposition, but I do appreciate your help.