If you're over 60 and your drives don't fly like they used to, it's tempting to blame your body. But in most cases, the real culprit isn't your swing, it's your shaft. Golfers who switch from a mismatched stock shaft to one built for their actual swing speed routinely pick up 6 to 12 yards per club, often within their very first round. This guide breaks down exactly why that happens: how swing...