[Yoda]

When everyone discusses down, out and forward. Down from where, out from what and forward of what. I have assumed (and we know what that breaks into) that down was from the top, out was from the center of the body, and forward was similar to through the ball.

The 'Down, Out and Forward' refers to the On Plane orbit of the Sweetspot from The Top of the Stroke through the Low Point.

The Ball rests on the Ground opposite the player. The Sweetspot is up in the air -- Back, Up and In -- On Plane. From The Top, the Sweetspot must move Down to get to the Ball; it must move Out to get to the Ball; and it must move Forward to get to the Ball. Hence...Down, Out and Forward.