Well, playing the ball back can help you swing more out, just the geometry of the arc. I would not recommend it because the angle of attack will increase. So to draw it with the driver, play the ball a ball or two in front of the left shoulder and aim the body a little right at address.
In terms of the face, you're correct, hit draws with a face aimed right of the target. Most slicers/faders hit the ball with a face LEFT of the target and the path further left of the face.
Makes sense re the geometry of the arc, but it's never worked for me. Everyone once in a while I'll start losing the the ball right, and it will inevitable be due to either the ball creeping back in my stance or me creeping an inch or two closer to the ball.