Mizuno is pushing golf’s custom-fitting boundaries with a major upgrade to its long-established Shaft Optimizer fitting tool. Using a built-in Gyroscope and transmission via Bluetooth, the lie accuracy of Swing DNA software will greatly improve.

Since the introduction in 2010, our Shaft Optimizer has become the favoured iron shaft fitting tool of golf professionals worldwide. Measuring five critical dynamics within a golfer’s swing, the Shaft Optimizer is able to recommend an iron shaft best matched to any golfer’s movement. The software ranks every available iron shaft (based on their EI curves) as best to worst theoretical match against your swing profile.