Yeah, I think it reeeeaaally depends on the lines. My breeder has said she knows all the way up to her dogs grandparents and it would be very hard for my dog to get past 5lbs. There just has never been one in the lines. However, she is 3 lbs now and she is only 12 and a half weeks. She hasn't grown since her 10th week though.
I dunno. I will tell you in a year!
