The #57 foot outside edge should be aligned along the edge of the fabric for a 1/4" seam and the needle position should be in the middle. The middle of the toe to the center needle position is 1/8". I have both feet for my 440 and the 37D for my 750 QE, and find them all to be perfectly accurate. You should not move the needle from the center position. If your machine is not accurate with the foot, I would take it in to the dealer for a check up, maybe there is a misalignment.