Fifty years in the game, and the numbers started to make sense somewhere around year thirty. Launch angle. Club head speed. Spin rate. I resisted it. Then I used it. The data confirmed most of what I already knew — and showed me three things I didn't.

These are the tools that close the distance between where you think your game is and where it actually is. Rangefinders. GPS watches. Launch monitors. Shot trackers. The gear that turns feeling into fact.

— Don MacKay, Muskoka Highlands Golf Links