Old time dog man told me to count the hairs in the moles under their chins,cant remember the rule now,something along the lines of 1 hair was no good,2 hairs was always a consistent dog and 3 hairs would take time to turn out but would end up being the best in the pack,ill try to find out from him on that one.
Rockin Roo, I was told something about the hairs too. Something along the lines of the more hairs sticking out of moles the smarter the dog is. Not sure if it's truth or not.