
I recently had the opportunity to visit the Titleist Performance Institute (TPI) in Oceanside, CA to accommodate the new T-Series irons – I walked away from the setup that was probably the most dial-in iron kit I have ever had.
Now, I get it: Most golfers won’t have a chance to go through the TPI’s door. But the lessons I learned from this experience apply to Anyone Hope to get more performance, consistency and confidence. My honor for the results is credited to TPI master Fitter Joey Saewitz, who led me through the complete Titleist fitting process – an experience that optimizes what the titleist calls the “3 D’S” fitting experience by laser-focused lasers.
The right process to build around you
Here’s the cool thing about how Titleist does things on TPI: They don’t just ask you what you want to hit. They show you what you should Strike based on a truly player-centric benchmark.
Each iron category (short ir-ryons, Mid-ryons and longirons) was independently tested, and each club had to pass a series of filters: launch window, rotation range, peak height, drop angle and ball speed gap.
Target? The ball speed between clubs is approximately 5 mph, with a consistent top height and drop angle giving you a green power throughout the set.
This is not about chasing your longest 7 irons. It’s about building a top-to-bottom suite – consistent, predictable.
My Starting Point: Effective Mixed Settings (One)
I entered the meeting with a pretty solid setup: the T100 6-PW, the T150 5-ERON bent to the hybrid loft and the T200 4-IROIR, also weakened by 2 degrees to reach my launch and rotation numbers. It works. But Joey determined something better.
After testing the entire new T-Series lineup (T100, T150, T250 and T350), we landed on something I didn’t expect: the full T150 at 4-PW.
Titleist 2025 T150 Custom Iron
The T150 iron increases distance with firm accuracy. The T150 fakes the player shape with progressive blade length, providing an accurate fusion of speed, stability and consistency, providing the confidence to hit and hold the green from anywhere. The forging design that inspires confidence creates the shape of the player, with a slightly larger head size that can be pure and has additional stability. The raised ball speed 1° stronger loft (vs. T100) combines improved muscle channels with 7 iron and lower eldest son CG to help increase speed, launch and carry. Excellent flight and stability Split high density tungsten produces the best CG with obvious precise shooting stability. Consistent speed and rotation under variable conditions. New VFT technology and progressive groove design provide rotation and speed throughout the face.
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Why the new T150 won me
The T150 is called the T100’s faster, more forgiving siblings. Although they share a lot of DNA (such as face thickness, muscle channels in long iron and progressive groove design), more firepower is baked in the T150.
I was surprised how close they fired at my previous T100, but were faster, dispersed and better forgiven as a kid. That’s the difference you see right away, especially on longer approach shots.
To fine-tune the spin and height, we weakened the loft by 1 degree throughout the group. This gives me what I need: Even those in Arizona summer, those who place surfaces are baked and hard like tables (like in the summer months).
;)
Jack Hesh/Golf
3d’s: Why every golfer should care about
Everything about TPI is related to optimization 3D. It’s not just the details of the tour level; these numbers are important to every golfer:
Distance control: You need to know exactly how far each iron is carried. The 10-12 yard gap has consistent ball speed.
dispersion: Inevitable blows are inevitable. However, the right head and axis combination minimizes damage and maintains tension in grouping. (Golf is a game of turnover.)
Descent angle: If your iron is not steep enough, you won’t stop the ball on the green, especially the long iron.
Here’s the biggest takeaway: No matter the high price of the technology, performance will only appear when building a swing that suits you.
Titleist 2025 T Series Iron | 7 Things to Know
go through:
Jack Hirsh
New T-Series Lineup: For Hybrid
Titleist has made it clear in this generation that each model has a purpose, and they are designed to mix according to what your game needs.
- T100: Compact, forged feel. The most accurate and viable option.
- T150: Faster, more forgiving, but still subject to tour. (The club I chose)
- T250: A complete redesign of the distance performance from True Player.
- T350: Forgive the game at serious ball speed – Improve forgiveness.
Each iron looks clean and cohesive in the bag, making the mixing set easier to get than ever before. That is, mix No guessing. You still need to test each head, loft to loft to find the correct transition point. The last thing you need is to have a 20 yard gap between 7 and 8 iron. test. Become healthy.
What I learned – What should you do
My trip to TPI was an incredible experience. But the real value is not just the iron I walked away from – it is the clarity of the proper ability.
The technique in the new T-series is impressive, but the best result is not the club itself. They come from a suit that is built to launch correctly, rotate correctly, softly and carry the required yardage.
Here’s the real good news: You don’t have to go to Oceanside to get this experience.
If you’re ready to upgrade the iron game or just want to know what you’re leaving on the table, book the right one at True Spec Golf. Their fitters work with a full T-Series lineup and use the same data-driven philosophy to match players to the ideal build.
;)
Kris McCormack
golf.com contributor
McCormack, based on a career spanning over 20 years in the golf industry, served as Vice President of Tourism and Education at True Spec Golf for the last six years of his career. During this time, he planned training programs for real spec fit personnel and promoted more continuing education courses. and manage their tourism sector and establish relationships with many OEM partners. Before joining the real spec team, McCormack worked with several industry-leading manufacturers to become a major level professional. In addition to being a coach and working with the Golf Channel Academy, he serves as a lead lecturer and a professional with inappropriate branding. He also works with the R&D team to assist in the product design, testing and development of various equipment distributions. He is a golf enthusiast and lives in the gear space!
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