HiiTs Speed Training Driver vs. The Stack System

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If you’re trying to increase swing speed and hit the ball farther, two of the most popular options right now are the HiiTS driver and The Stack System.

Both are designed to help you gain speed, but they take very different approaches to get there.

The Stack System is built around a structured training model using adjustable weights and guided programming to help you increase speed over time. The HiiTS driver takes a more golf-specific approach, allowing you to train speed while actually hitting balls and seeing real ball flight.

In this post, I’ll break down how they compare, who each one is best for, and how to choose the right option for your game.

HiiTs Speed Trainer vs. The Stack System Comparison 

Speed training has become one of the biggest advantages in modern golf, and there are more tools than ever to help you do it. At a basic level, the goal is simple: increase your swing speed so your “normal” swing becomes faster without feeling like you’re swinging harder.

Most golfers never train speed directly, which is why they leave distance on the table. But when you start training it intentionally, the benefits show up quickly:

• Shorter approach shots
• More scoring opportunities
• And hopefully, a lot lower scores

The big difference now is not if you should train speed—it’s how you do it.

Some tools focus more on structured training and progression, while others focus on creating a more realistic, on-course feel. The key is finding the one that fits your setup and helps you actually stay consistent.

Let's compare these popular speed trainers to see which one can help your game the most.

The Stack System Overview

The Stack System  is a more advanced, data-driven approach to speed training that focuses on personalization and long-term progression. Instead of using multiple sticks, it uses one training club with adjustable weights that you change based on your program.

What really sets it apart is the app-based system that guides your training, tracks your speeds, and adjusts your workouts over time. Plus, other features like putting and wedges (which can't be said for other golf speed training apps). 

It’s not just about swinging faster—it’s about following a structured plan that evolves based on your performance. No cookie-cutter programs; everything is made for your game. 

For golfers who like numbers, feedback, and a clear progression, this is a big advantage. You’re not guessing what to do or how to improve—you’re following a system built around your current speed and goals.

Pros

• Highly structured, app-based training program
• Adjustable weight system for progressive overload
• Personalized workouts based on your speed data
• Tracks progress and gives clear feedback over time
• Great for golfers who like a data-driven approach

Cons

• Doesn’t involve hitting golf balls
• Most expensive "air only" speed trainer
• Higher learning curve compared to simpler speed tools
• Requires using the app and following the system closely

If you’re someone who likes structure, data, and a clear progression plan, The Stack System  is one of the most detailed and guided options available.

👉 For a full breakdown of how it works, how I tested it, and who it’s best for, check out my complete Stack System review.

HiiTS Driver Overview

The HiiTS driver is built around one simple idea: train speed the same way you actually play golf. It was created by 3X WLD champion Fast Eddie Fernandes, who used early designs to create his winning formula for more speed. 

Instead of swinging a training aid without a ball, you’re hitting real shots while working on speed. That gives you immediate feedback on contact, launch, and ball flight—something you don’t get with more traditional systems.

What makes this approach so effective is how well it blends into normal practice. You’re not setting aside separate time just to train speed—you’re building it while hitting drivers, working on timing, and learning how to apply it on the course.

That’s a big difference. For a lot of golfers, the challenge isn’t just gaining speed—it’s actually using it when it matters.

The HiiTS driver helps bridge that gap. All you need is 2X a week for 16 weeks and commitment (I've seen huge results in the first month).

Pros

• Train speed while hitting real golf balls
• Easier to transfer speed gains to the course
• Blends seamlessly into normal practice sessions
• Online community with Eddie and other coaches
• More engaging and realistic than traditional training tools

Cons

• No app
• Requires access to a range, net, or simulator
• No built-in tracking or data like more advanced programs

If your goal is to not just swing faster but actually hit the driver longer on the course, the HiiTS driver is a more practical and golf-specific option.

👉 For a full breakdown of how it works, how I use it, and the results you can expect, check out my complete HiiTS Golf review.

My Experience (After Trying Them All)

I’ve tested just about every type of speed trainer out there, and they all can work—but they’re not all equal depending on the golfer. If I had to pick an “air only” swing trainer, I keep coming back to Rypstick over the Stack System or SuperSpeed.

It’s more affordable, less tech-heavy, and incredibly easy to use. I also like that it’s closer to a driver length, which makes it feel more natural compared to a mid-iron. Most importantly, it’s something you can stick with consistently, and that’s what actually leads to results.

If you want to hit balls while training, HiiTs is outstanding. For intermediate to advanced golfers, it’s worth the price tag. I’ve seen huge gains in 6 weeks and love the easy-to-follow schedule.

As long as you have access to a range, net, or simulator, it's a ton of fun and a great way to actually apply speed training. You’re not just swinging for speed; you’re hitting drivers, seeing ball flight, and learning how to transfer those gains directly to the course.

So it’s less about which one is “best” and more about what fits your setup and how you like to train.

Closing Thoughts

At the end of the day, every golfer should be training for speed—it’s one of the fastest ways to improve your game. But the biggest mistake I see is golfers jumping between tools and never staying consistent.

Pick one and stick with it.

If you’re a data guy, the Stack System  can work well. Plus, it has other features that help more than just speed training.  

If you want something simple, effective, and easy to use anywhere, go with Rypstick (you can save 20% with code “WICKEDSMART”).

If you want a more realistic, on-course feel and have the ability to hit balls, the HiiTS driver is an awesome option (save 10% with code “WICKEDSMART”).

All speed trainers can work, but the key is committing to the process and giving your body time to adapt. Train for speed consistently, and the distance will follow.