Callaway Golf’s Alan Hocknell shows the core of the new Great Big Bertha Epic driver. The club’s “Jailbreak Technology” consists of two reinforcing bars cast into the titanium club head, just behind the face.

Callaway Golf’s Alan Hocknell shows the core of the new Great Big Bertha Epic driver. The club’s “Jailbreak Technology” consists of two reinforcing bars cast into the titanium club head, just behind the face. Photo by Jamie Scott Lytle.

— Why didn’t I think of that?

Some innovations seem so simple that a person might say that to himself...

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