Far enough away so that no mater how long your follow through is, it will not alter the shot or the placement of the balls on the table.
Near enough that you can easily achieve both the potting of the ball and the speed and final position of the CB.
9" to 14" seems to be about right.
Near enough that you can easily achieve both the potting of the ball and the speed and final position of the CB.
9" to 14" seems to be about right.