This story is for you if...
• You never feel balanced.
• You grip the club differently every time.
• You have difficulty aiming the clubface.
Stand straight up in front of a full-length mirror with your feet together. Note how your hands hang at your sides. Next, spread your feet three inches apart, and note your hand position again. Keep taking wider stances at three-inch intervals until your feet are just outside your shoulders, checking your hand position at each stance width.
What You're Looking For
Research shows that when you're perfectly balanced, your hands hang at your sides the same way (one hand will rotate toward your body more than the other when you're out of balance). This balanced/imbalanced state changes every time you widen or narrow your stance three inches.
How to Find the Correct Stance Width
Place a yardstick at your feet and perform the drill again, and mark the widths that allow your hands and arms to hang exactly the same. At the very least, find three of these perfectly balanced stance widths: one for your wedges, one for your mid-irons and one for your driver. Use the yardstick as a guide to set your stance width when you practice on the range. Starting from a balanced address gives you a better chance of swinging on plane and gripping the club without undue hand rotation, so your can set your clubface square at address. This holds true from putter all the way through driver.