STACK SYSTEM DISCOUNT CODE
For a 10% discount on The Stack System, click on this link or use the code ‘WANDER10’My journey with The Stack System began with a simple question: ‘Can I actually swing the golf club faster?’
Like many of us, I’d watched Bryson DeChambeau transform himself into a walking physics experiment—smashing drives past bunkers designed to challenge mere mortals, flying the ball 320 yards through the air like it was nothing. But behind the protein shakes and gym work was something more refined: biomechanics and speed training.
Co-created by renowned golf biomechanist Dr. Sasho MacKenzie, The Stack System promises more than brute force. It offers a personalised, data-driven journey to more speed, built on science, adaptive programming, and user feedback. No more guesswork. No more random training. Just you, a club, a radar, and an app that learns. These days it also helps improve your putting and distance control too.
So, I took the plunge. I tested The Stack System religiously over a number of months. I logged every session, tracked every swing, and now I’m ready to share the full truth—warts, wins, and swing speed gains included.
I believe this is the most comprehensive and honest Stack System review you’ll find anywhere. If you’re considering whether The Stack System is right for you, you’ll find everything you need to know here.
What Is The Stack System?
At its core, The Stack System is a golf speed training platform that combines:
a specially weighted shaft called The Stack
The Stack System mobile app which delivers personalised training programs.
And a launch monitor (in my case a FlightScope Mevo + which is not included)
Now, unlike traditional speed sticks or overspeed trainers, which offer a linear, one-size-fits-all path, The Stack System is designed to adapt to you. Your current swing speed, your progress, your fatigue—all feed into the system and shape your next session. The creator, Dr. Sasho MacKenzie, is no YouTube swing guru. He’s one of the most respected minds in golf science, with published work on swing mechanics, muscle activation, and force production. When Matt Fitzpatrick wanted to get faster, it was Sasho he called. In fact, after winning the 2022 US Open, he said: “Sasho gave me The Stack… It’s like going to the gym basically, like a training program and I’ll be honest, it’s worked wonders.”
The Stack itself is modular—a graphite shaft with weighted plates you can attach or remove to train across different weights. Combine that with the radar which tracks your swing speed without needing to hit a ball, and a smart, responsive app that adjusts your protocol based on results, and you’ve got the most advanced system of its kind.
It isn’t cheap. But it’s serious. And it works—but only if you do.
What Makes The Stack System Different?
There are plenty of golf speed training aids out there—SuperSpeed, Rypstick, DIY options—but The Stack System stands alone in four crucial ways:
1. Stack System: Adaptive, Personalised Programming
This is the heart of The Stack’s advantage. It’s not a rigid 6-week plan. Instead, the app uses your unique swing speed curve to design a progressive, dynamic program tailored to you. As you improve, it adapts—shifting weights, altering rest intervals, and even recommending recalibration if you plateau.
That kind of feedback loop doesn’t exist in static training tools. This feels like having a biomechanist in your pocket.
2. Stack System: Real-Time Performance Feedback
Every rep is measured. Every session tracked. The radar provides immediate speed data that syncs with the app, creating a full digital record of your training history. You see when you’re improving—and more importantly, when you’re not.
3. The Stack System: Backed by Science
As we have said, The Stack System was developed by Dr. MacKenzie. So this isn’t an influencer project—it’s grounded in peer-reviewed science. Some of the world’s best golfers have trusted him during their speed transformations for a reason.
4. Efficient & Golf-Specific
No gym. No hitting balls. No need for hours of extra practice. A typical session takes anywhere between 15 and 30 minutes and can be done at home, in your garden, or on the range. You train your nervous system—not your muscles—by increasing how fast your body can recruit force through the swing. It’s precision-engineered to transfer to actual golf.
THE STACK SYSTEM: Compatible launch monitors
The Stack System App: A Deep Dive
Let’s talk about the brains behind the brawn: The Stack System’s App.
Smart, Not Static
The app uses your initial calibration to generate a Speed Profile Curve—a fingerprint of how your swing speed varies across different weights. That curve drives your program selection, progression, and session planning.
Real-Time Session Feedback
Every swing is recorded via Bluetooth sync with the your radar or launch monitor. After each set, the app updates your performance, highlights fatigue trends, and adjusts your rest intervals. If your numbers dip too far, it’ll pause your program and prompt a recalibration.
Program Variety
You don’t just get one plan. You choose (or get recommended) from protocols like:
Foundation – for beginners or returners
Full Speed Spectrum – broad adaptation
Neural Drive – short, sharp CNS-focused work
In-Season Maintenance – minimal volume for max retention
Advanced Speed – for experienced Stackers
Each one is tuned to different phases of your golf year.
Data Tracking & Visualisation
You can view your session history, personal records, and swing speed trends over time. Graphs show your peak vs average swings, which can help identify fatigue or breakthroughs.
Room for Improvement
It would be great to see:
More insights into technique (even if just tempo or swing length)
Notifications/reminders for scheduling consistency
But overall, the app feels like a well-designed coaching companion that grows smarter as you use it.
The Science Behind The Stack System
We know golfers love gear. Drivers, shafts, launch monitors—we obsess over equipment. But speed? That lives inside you. And that’s exactly where The Stack System goes to work. It’s built on the principle of progressive overload—the same concept elite athletes use to build strength and speed, and uses variable weights and AI-driven training to target neuromuscular adaptation. By swinging lighter stacks, you train your body to move faster; by swinging heavier stacks, you build the strength to sustain that speed. Over time, this combination optimises the kinematic sequence—how energy flows from the ground, through your body, into the club—unlocking more clubhead speed and distance.
Dr. Sasho MacKenzie: The Mind Behind The Stack
Dr. MacKenzie is a biomechanics professor at St. Francis Xavier University and one of the world’s foremost experts in golf swing mechanics. His research—often cited in elite coaching circles—focuses on how the body generates force, how torque is applied through the kinematic chain, and how golfers can move faster without breaking down. He’s not just a name on the website. He’s the architect of the speed curve model that powers The Stack System’s app and training logic.
The Stack System: Neuromuscular Training
Most people think of speed training like strength training—load up, grind, rest, repeat. But The Stack System is rooted in neuromuscular adaptation. You’re not building muscle. You’re training your brain and body to fire faster, recruit more motor units, and do it all with greater coordination. Each weighted swing stimulates the central nervous system to move faster, not harder. This is about rate of force development, not raw power.
Overload: Why Weight Variation Matters
Traditional speed sticks often rely on overspeed alone—swinging something lighter than your driver. The Stack takes a more sophisticated approach, blending:
Overspeed training (light loads) to increase max velocity
Overload training (heavy loads) to enhance force production
And everything in between, targeting specific neural adaptations
This variation avoids plateaus and keeps your nervous system guessing—and growing.
Rest and Recovery Are Part of The STACK SYSTEM
Sasho’s research showed that fatigue management is critical for long-term gains. That’s why The Stack app prescribes rest intervals and even full recovery weeks. It’s not just good science—it’s good programming.
The Stack System: My Results
Ok. So you know how The Stack System works and what it is trying to achieve. But how did I find it. Well, after 10 weeks of focused training with The Stack System, I completed 24 sessions, sticking closely to the app’s Foundation program. I began with an average driver swing speed of just 89.7 mph, maxing out at 91.5 mph during my first calibration session. Like many amateurs, I’d plateaued there for a long time—until now.
By the end of the program, my swing speed had surged to 107.2 mph (peak), with an average closer to 105.1 mph. That’s a gain of more a 15 mph—the kind of leap that transforms your game.
The Stack System Results: Before & After
| Metric | Week 1 Baseline | Final Week | Net Gain |
|---|---|---|---|
| Avg. Driver Swing Speed | 89.7 mph | 105.1 mph | +15.4 mph |
| Max Driver Speed (All-Out) | 91.5 mph | 107.2 mph | +15.7 mph |
| Avg. Carry Distance | ~235 yards | ~266+ yards | +31+ yards |
| Total Sessions Completed | — | 24 | — |
Around the midpoint, I definitely plateaued. My speed flatlined. I was tempted to push harder, but the app advised backing off. I followed its lead—took rest days seriously—and returned with a second wave of gains that carried me past 110 mph.
The Stack System Didn’t Just Track—It Coached
The real difference was that I wasn’t guessing. The Stack app taught me how to train. It knew when I was trending upward, when I was fatigued, and when to recalibrate. It was like having a high-performance coach in my pocket.
The Stack System: Pros & Cons
The Pros
1. Proven, Personalised Results
The gains are real. A 15+ mph increase in swing speed over 10 weeks isn’t just rare—it’s game-changing. But what sets The Stack System apart is that it’s built for you. The adaptive programming means it evolves with your performance, not against it.
2. Backed by Serious Science
Dr. Sasho MacKenzie isn’t guessing. He’s spent decades studying the biomechanics of speed. This system isn’t based on trends—it’s grounded in published research and Tour-level results.
3. App-Driven Coaching Without the Guesswork
You don’t have to figure out sets, reps, or rest periods. The app does it all. It tracks fatigue, calibrates progress, and adjusts protocols in real time. It’s intuitive, effective, and removes the need for a coach.
4. Compact, Portable, and Non-Invasive
You can use it at home, on the range, in the gym, or in your garden. No need to hit balls. No need for expensive facilities. Just swing.
5. Transferable to the Course
It’s one thing to swing faster in training. It’s another to carry that speed to the course. With The Stack, the transfer was obvious—higher carry distances, shorter approaches, more confidence off the tee.
The Cons
1. It’s Expensive
At around £375/$499, it’s a serious investment. And that’s before you start to adjust the kind of launch monitor you might want. You would need to spend around $2,000 to pair it with a Flightscope Mevo +. For casual golfers, that cost might well be a barrier.
2. It requires real commitment
This isn’t a shortcut. You need to complete 2–3 sessions a week over several weeks. Skip sessions or half-effort your way through, and you won’t see the same gains.
3. No Swing Mechanics Involved
This is about speed—not swing mechanics. If you’ve got major flaws in your technique, The Stack won’t fix them. It’s not a coaching tool. It’s a performance enhancer.
Is The Stack System Worth It? Our verdict
Let me say it plainly: Yes. It’s worth it. But only if you’re serious. If you’re the kind of golfer who wants to unlock more distance—and you’re willing to follow a structured, science-backed program—then The Stack System might be the best investment you make in your game. It isn’t a gimmick. It isn’t easy. And it isn’t cheap. But if you stick to it – you will get faster. You will gain distance. And you will see the difference where it matters: on the course.
Who is the Stack System Best For?
Committed amateurs wanting 20–50+ yards more carry
Competitive players looking to level up
Golfers stuck at a swing speed plateau
People who enjoy training and seeing measurable progress
Who is the Stack System Not For?
Casual weekend players who won’t commit to 2–3 sessions/week
Golfers with major swing flaws or injuries (fix those first)
Anyone hoping for quick results without effort
For me, The Stack System delivered. And not just numbers on a radar—but confidence, swagger, and a new ceiling for what my game can be. But it might not be for you, unless you’re serious about this. It requires dedication, consistency and hard work – but if you put that in, you will get some incredible results.
*For more information or to buy The Stack System, visit TheStackSystem.com
The Stack System: Frequently Asked Questions (FAQs)
What is The Stack System?
The Stack System is a personalised golf speed training tool developed by biomechanist Dr. Sasho MacKenzie. It combines an adjustable-weight shaft, launch monitor (typically PRGR), and a smart app that creates adaptive speed training programs based on your performance.
Does The Stack System really work?
Yes—if you commit to it. In this review, I gained more than 15 mph in driver swing speed after 10 weeks of training. The system is used by PGA Tour players like Matt Fitzpatrick and is backed by serious biomechanics and user data.
How much does The Stack System cost?
The Stack System retails for approximately £350 / $375 USD, and the recommended PRGR radar is around £200 / $230 USD. The mobile app is free, but only usable with a verified Stack shaft and PRGR device.
Do you have a Stack System Discount Code?
We do. For 10% Stack System Discount, click on this link or use the code WANDER10
How long does a Stack training program take?
Most programs run for 6–10 weeks, with 2–3 sessions per week. Each session lasts around 30–35 minutes. The app also recommends rest and recalibration periods to avoid overtraining.
What training programs are included in the app?
Popular protocols include:
Foundation (for new users)
Neural Drive (CNS-focused gains)
Full Speed Spectrum (broad adaptation)
Advanced Speed (for experienced Stackers)
In-Season Maintenance (minimal dose, maximal retention)
The app selects the right one based on your calibration session and goals.
Can beginners use The Stack System?
Absolutely. In fact, golfers with lower swing speeds often see the most dramatic gains. The app tailors the workload to your current ability—there’s no need to be an elite athlete to benefit.
How does The Stack compare to SuperSpeed or Rypstick?
While all three use weighted shafts, The Stack is the only one with adaptive, app-driven programming that adjusts in real time based on your performance. SuperSpeed and Rypstick offer good protocols, but they’re linear and static in comparison.
Is The Stack System available internationally?
Yes. The Stack ships to most countries through its official website: www.TheStackSystem.com. Import duties may apply depending on your region.
What kind of gains can I expect?
Most golfers report 10-12 mph increases in driver swing speed after one full Stack program. I saw a 15 mph gain but I was always someone who always favoured a smooth and easy golf swing over power.
