The rule of 10 is a drill in which you hitting 10 balls with any club. Keeping track of the results, to see how many good shots you hit with that club during those 10 swings. Then move to the next club. Try not to hit the same club in secession. This becomes a reference guide to better see and understand how you are improving. The rule of 10 provides a system to follow to make your practice more effective to better prepare you for the golf course. And for creating many different shots. STP….