Yeah he must! He drags me around like nothing. I asked flypiper (dog trainer) for some insight about trying to teach him to not pull while on a leash. But no response. It might be a secret and giving away info like that can put yourself out of business. LOL!
He is a very good dog! He will very seldom bark at all. He only barks when there is a stranger in the yard. The neighbors kids and family go in my yard he won't bark but let someone else come in the yard and he will let go.