The key to distance: loft or flex?By Mike StachuraThe more we discover about the science of distance, the more it seems there is to learn. Golf Digest research over the years has suggested that most average golfers would benefit from a higher-lofted driver. To refine this idea, we wondered what role shaft flex plays, especially the combination of clubhead loft and shaft flex. We wanted to know what works better: less loft with more flex, or more loft with less flex. To find out, we tested average to above-average golfers with swing speeds of 95 to 102 miles per hour and discovered that less loft but more flex tended to produce better launch conditions (more carry and more total distance). In our test, a 9-degree driver with a regular-flex shaft worked better than a 10-degree driver with a stiff-flex shaft.Why would that be? According to Tom Wishon, founder of Tom Wishon Golf Technology and author of The Search for the Perfect Golf Club, the reason has to do with a player's swing type. Less-skilled players who cast the club from the top cause a shaft with more flex to bow and return to straight well before making contact with the ball. Conversely, a better player who maintains wrist angle for a later release will cause the shaft to bow and spring forward just before impact, essentially adding loft at impact. "This is one of the reasons," Wishon says, "that we advise our clubmakers to always err on the side of a more flexible shaft, even with later-release players."The key to distance: loft or flex?By Mike StachuraThe more we discover about the science of distance, the more it seems there is to learn. Golf Digest research over the years has suggested that most average golfers would benefit from a higher-lofted driver. To refine this idea, we wondered what role shaft flex plays, especially the combination of clubhead loft and shaft flex. We wanted to know what works better: less loft with more flex, or more loft with less flex. To find out, we tested average to above-average golfers with swing speeds of 95 to 102 miles per hour and discovered that less loft but more flex tended to produce better launch conditions (more carry and more total distance). In our test, a 9-degree driver with a regular-flex shaft worked better than a 10-degree driver with a stiff-flex shaft.Why would that be? According to Tom Wishon, founder of Tom Wishon Golf Technology and author of The Search for the Perfect Golf Club, the reason has to do with a player's swing type. Less-skilled players who cast the club from the top cause a shaft with more flex to bow and return to straight well before making contact with the ball. Conversely, a better player who maintains wrist angle for a later release will cause the shaft to bow and spring forward just before impact, essentially adding loft at impact. "This is one of the reasons," Wishon says, "that we advise our clubmakers to always err on the side of a more flexible shaft, even with later-release players."