Harrington has attempted the Happy Gilmore swing before, using it as a way to break the monotony on the practice tee. So for “Sport Science,” Harrington had no qualms about taking some hearty whacks at the ball. It was funny, impressive and informative at the same time. It turned out that Harrington generated about 7 miles per hour more club head speed with his driver doing it Happy’s way, and he increased his usual drive of 296 yards by about 30 yards.