The MyGolfSpy Forum introduced a special opportunity in 2023 with the Forum member review of Mizuno long-game clubs. These clubs included the Mizuno ST 230 driver, fairway, hybrid and Fli-Hi long-iron replacement clubs.
Mizuno’s new technology was the CORTECH Chamber which, as Mizuno stated, was their missing piece. The short version is that the CORTECH Chamber encases a dense stainless steel weight in elastomeric TPU, which takes stress from the clubface and aids in creating more energy transfer. It also moved weight to more ideal locations to help with feel and improved spin rates.
Testers were fitted and provided with the best combination of three clubs, with every tester receiving a driver. The fitting determined what would be the best combination of fairway, hybrid or Fli-Hi for the remaining two clubs.
About The Testers
The testers ranged in ability with handicaps ranging from 4 to 13 and varying swing speeds. The testers have different backgrounds, experiences and tendencies on the golf course to give a wide range of results to showcase how these golf clubs really perform.
What The Testers Said: Initial Impressions
Testers were generally very pleased and impressed with the clubs when they arrived. The sticking points were delays in getting the clubs and that the order/processing time took longer than most had hoped. Not a knock on the clubs themselves but it was noted in the reviews.






