Great discussion! What's interesting to me is that if you look at old school pit bulls (Colbys, Tudor's Black Jack, Black Jack Jr., Corvino, etc.), a lot of them look more like AmStaffs today rather than gamebred APBTs. So now comes the question: is it maybe possible that genetically, working AmStaffs today (such as Esoteric AmStaffs or even the X-Pert line, which are down from Tacoma Jack) are more similar to the old dogs than gamebred dogs today? I do think in general, most AmStaffs are bred so far down a different purpose that they're a different breed but there are working lines (schutzhund etc.) that the owner claimed are breeding true to type based on the old AmStaff standard.