1972 Different Obverse Plancent Positions

While looking at 1972 cents to identifly DDO's I noticed a difference in planchet positions to die strike by looking at the boarder width. I have pics of three 1972 overse coins, the first is my DDO 001, with the other two 1972's with no DDO. Notice the border position to the die strike. My DDO is centered on the planchet, the next one is shifted right toward trust, while the third coin is shifted to the bottom left. Interesting that the die strke moves that much. the reverse are pretty much the same positions. Let me know your thoughts. Regards.