Mizuno bills the better-player ST-Z and game-improvement ST-X as their next generation designs. Both have a forged beta titanium face, Mizuno’s Wave Sole and an adjustable hosel.

Fast Facts

• Mizuno ST-X driver
• Game-improvement 460cc clubhead
• Draw-bias
• Deeper more compact profile
• Forged SAT2041 Beta Ti variable thickness face
• Carbon fiber crown and toe panel
• Sole weight near heel
• +/- 2° adjustable hosel
• Stock shafts: Fujikura Motore X, Mizuno MFusion, Project X EvenFlow Riptide
• Stock grip: Lamkin ST Hybrid 360 grip
• At retail February 18, $400

Mizuno ST-Z driver

• Better player 460cc clubhead
• Forged SAT2041 Beta Ti variable thickness face
• Carbon fiber crown and sole panel
• Rear sole weight
• +/- 2° adjustable hosel
• Stock shafts: Fujikura Motore X, Project X EvenFlow Riptide, Project X HZRDUS
• Stock grip: Lamkin ST Hybrid 360 grip
• At retail February 18, $400

WYNTK:

Mizuno’s latest drivers have a face forged from an exotic titanium alloy containing vanadium, aluminum and tin mounted on a titanium body specifically constructed with carbon fiber crown and sole panels to provide the desired performance for different skill level players.

The ST-X with a carbon sole panel towards the toe and weighting towards the heel has a strong draw bias which can help those fighting a slice. The head has more depth than the ST-Z and the profile is smaller. In addition, there is J-Spec (Japan Specification) variant for those with lower swing speeds that comes with a very light 39-gram MFusion shaft. Higher swing speed golfers such as Tour players will appreciate the low-spin high-stability design of the ST-Z with its carbon sole panels toe and heel.

Mizuno’s Chris Voshall, “The ST-Z’s predecessor – the ST200 – had a reputation for being a straight-line bomber favored by our longer hitting tour players, and the ST-Z profile is no different. But with an extra year’s extra experience engineering the Forged Beta SAT2041 Ti, we were able to release a little extra ball speed and a much more satisfying experience off the clubface.”

Both models use the Wave Sole Plate behind the face to increase flex at impact for more ball speed.