We're certain that the first image above has brought back some fond memories for a lot of you - some of you may still have one in the bag!

Once upon a time, small clubhead sizes were the norm, which offered very little in the way of forgiveness off the tee with adjustability just another way of saying you needed to change up your swing.

Thankfully, technology continues to develop and today's drivers are unrecognisable from what's been and come before.

Take Callaway's Epic Flash driver as an example. Its sliding sole weight changes your ball flight, an adjustable hosel alters loft and lie, and its Jailbreak Technology and Flash Face offer incredible distance. It all means one thing -  a custom fitting is crucial.