the Gap Shot, a trick shot or a good drill to test your follow through. Place the ball as so and see if you can pocke the ball with your follow through, looks easy but for someone who doesn't really follow through can be tough, otaye now to make this drill even more detailed place a striped ball as the ball to hit into the pocket after cueing the oneball as remembered to see if you have a good follow through, now even more place the striped ball vertically so the stripe is up and down and centered now when you follow through you will be able to tell if your cue goes to the left or right after contact, as the striped on the ball should roll straight but if see it have english then your stroke is to the side after contact.