Golfers have a natural tendency to line up with their shoulders angled left of target, even when their feet are perfectly square.
Usually, we unconsciously open the shoulders for a better look at the target. But we end up creating a headache.
When the left shoulder is pulled back, away from the ball, the backswing turn is restricted. We’ve cost ourselves power before making a move. Open shoulders may alter the club’s path as well, causing an over-the-top (outside-to-inside) swing that leads to pulls and slices.
Video or still photos, taken from your right and looking down the target line, are extremely helpful in determining your shoulder alignment. You can also have a friend or teacher hold a club across your shoulders at address to see which way they’re aimed.
Get your shoulders squared away and your golf swing will follow.