A great drill for staying within one degree of our aim is the gate drill. Remembering that a one degree error at 10 feet easily results in a miss; a short math problem gives us a fantastic training aid. To test your stroke align two tees two inches apart nine inches away from the ball. In other words a two inch wide gate measured at nine inches is the same as one degree at ten feet. As long as your ball rolls between the tees you’re inside one degree. Try it!