But, like AI technology, Callaway is a quick study and the new Apex Ai iron series is proof of that. “In the past we were using robot swings (to develop clubs), but humans aren’t robots ...

“We focused on three areas,” said Scott Manwaring, Callaway’s director of iron design. “The first is an elevated look, sound ...

A handy comparison chart on Callaway’s website will help you figure ... at address looks smaller than a typical game-improvement iron but bigger than a butter-knife blade. More importantly ...