Anyone watching you at the driving range would swear you're a single-digit handicapper. You study the theory, make a plan, and build your game brick by steady brick. Your practice volume and knowledge are unquestionably top-class among the 16 golfer types, and all that work has already become a genuine foundation. Judged on technique alone, a game several strokes better than your current scores is already living inside your body.

Which is exactly why it's such a shame. When the round starts, those beautiful range swings go missing. The more conscientious you are, the more the score takes over your mind — and you end up leaving your practice self back in the locker room. What you lack isn't skill or effort. It's simply a mechanism for bringing your practice self out onto the course.

A few rounds probably come to mind. The front nine falls apart, the range swing finally shows up on the back nine, and you groan in the car on the way home: "If only I'd had that from the first tee." That back-nine golfer is the real you.