Driving them long saves strokes. So, does hitting them straight. Finding the fairway keeps you out of rough and the woods. Plus, it sets you up for easier and better approach shots. That can generate more birdies and pars.   But hitting them straight is easier said than done. Even the best of golfers can push or pull tee shots during a round. Mistakes like that can pack strokes onto your scores. The key to hitting them straight, however, is returning the club shaft to its original shaft line at address.   That’s the imaginary line created between a golfer’s hands and the grounded...