Golfers spend a lot of money trying to get better. They buy clubs, take lessons and practice till dark. Still, there are times on the course when they can’t remember the proper setup for a sidehill lie with the ball below their feet.

Atlanta entrepreneur Kristian Traylor is capitalizing on such moments. He developed the Golf Genie Tee to Green pocket guide and mobile app: Just pull it out or open it up, flip to the advanced shots section, then read and heed. The advice for that tricky sidehill shot? Use full length of the club; tilt spine more than normal; aim left of target; keep backswing short; and choose one more club.

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