When the American Staffordshire Terrier was created, it was only a name change. There was nothing added. The dogs may have been bred for exaggerated features and show ring. But thats basically just a new bloodline. Even APBT
's very in look and temperament through bloodlines. I am not one to agree that a dual reg pitterstaff is a mix breed. If nothing was ever added to the blood, than American Staffies are APBT
's. Thats my opinion on the whole situation. Amstaff is just a name for a different style of pit bull in my opinion. Although I will call them as such.