We’ve already done a first-hit review but it was time for a proper Mizuno JPX900 irons comparison using our anonymous big hitter.
Our Mizuno JPX900 irons comparison took place at the Golf Shack using Trackman 4 and our resident pro James Whitaker to monitor the data.
Mizuno JPX900 irons comparison – the methodology

When I tested the the Mizuno JPX900 irons in our first hit review there were different shafts in each of the Tour, Forged and Hot Metal heads.
The samples we received had shafts in each head that would suit the type of player expected to get on well with that head.
But for the Mizuno JPX900 irons comparison with our anonymous big hitter, we thought it was only fair if the same shaft was used in each 6-iron head.
He doesn’t really talk but our anonymous big hitter communicated to us that the Project X 6.5 shaft worked best for him.

With James Whitaker being an official Mizuno Performance Centre fitter he was able fit the shaft into each of the heads using his fitting gear.
After an extensive warm-up which involved some very strange stretching, our anonymous big hitter hit 10 shots with each of the 6-irons.
Mizuno JPX900 irons comparison – the results
From my own testing as a 17-handicapper, it was no surprise that the JPX900 Hot Metal irons were performing best for me.
The Forged look and feel superb but I was just getting a bit more ball speed out of the Hot Metal, particularly on mis-hits.















