Seen Landon line up the contact point to the pocket on an open table .
Let's cut the BS , a world class player can look at that contact point on cut shots and hit it without ANY SYSTEM .
Seen many pros point to the contact point on combination shots .
How many do you see bend over and line up the ball to the pocket ?
Hell, Efren seldom looks from the ob to the pocket. He just stands behind the cb, sees where it needs to be to pocket the ball, and then sends it there.