In golf, there’s a clear relationship between a club’s length/loft and its accuracy. Simply put, the longer and less lofted the club, the more difficult it is to hit straight.
Exhibit A: The Driver. As the club with the longest shaft and least lofted face, it’s the most likely to produce a wild slice. Here’s why:
The driver’s shaft length (typically 43-46 inches) creates a significant amount of “lag” on the downswing. In other words, the clubhead trails the handle as the shaft bends. The lengthy shaft takes longer to unbend, requiring strength and solid technique by the golfer. If lag remains at impact, the clubface will be open, causing a slice.
As for loft, a mere degree or two can make a big difference. The more loft on a clubface, the more time until the hitting area reaches the ball, giving the golfer precious extra nano-seconds to square the club. Most drivers have just 9-12° of loft, so there’s little margin for error.
Naturally, the length/loft vs. accuracy formula holds true throughout the bag. That’s why you rarely see a big slice with a wedge. Likewise, a shorter club is easier to control and thus hit solidly.
If you struggle with slicing or making good contact, make sure your shafts are the right length and flex for your swing. And consider using a fairway wood or hybrid instead of a driver from the tee.