Practice doing a legal break shot

To execute a legal break shot, the breaker must break behind the head string. He must either pocket a ball, or drive at least four numbered balls to the rail. When the breaker fails to do so, it is a foul, and the incoming player has the option of accepting the table in position and shooting, or having the balls re racked and having the option of shooting the opening break or allowing the offending player to re break.