The idea of this T-9 drill is to run the balls in rotation, but without moving any of the other balls with the cueball, when playing position on the next ball. The spin used in this drill is mostly follow (Top) english, but you may need a little left or right follow english, depending on the position of the cueball on your next shot and where you need the cueball to go, in order to get position on the next shot. This is a progressive drill and so, a beginner level player can start with the 1,2,3,4... then once that player is able to run them all consistently, then add the 5,6,7, and so on. Method of the drill:- 1, 4, 7 balls to be made on the lower right corner pocket, 2, 5, 8 balls to be made in the upper right corner 3, 6, 9 balls to be made in the lower left corner. Purpose of the drill:- The purpose of this drill is to learn how to become familiar with the speed of the cloth and rails of the table and to be able to adapt quickly to how the table's playability, but also it is important to know how to minimize cueball movement when playing position on the next ball, reguardless of the game you play being 9Ball/10Ball or Straight Pool/14.1. It's a great drill and it is a good way to help 'fine tune' your cueball control. I hope you enjoy this drill and I have alot more drills to share and so, be sure to stay tuned for more drills to take to the tale and try out.