TheStack System Bundle Review

The TheStack System Bundle is a swing speed program built around a weighted club, a Bluetooth radar and an app that creates a plan from your own baseline test. It worked for me. Over about two months my driver speed went from around 100 mph to 107 mph, and I felt less tired late in my rounds.

Every speed program I’ve tried has helped me gain speed, so what matters is which one is easiest to stick with. TheStack’s edge for me is that the radar sends every swing to the app on its own, so a session is mostly just swinging. The plan took about an hour a week.

The club and weights

All speed training programs rely on the same tool, a weighted club. TheStack uses five weights that screw onto the end of the club and come in their own carrying case, so changing them is quick and easy. Each weight has a rounded-rectangle center hole that keeps it from spinning during the swing, and you use the five in different combinations to create different swing weights.

The shaft feels like an X-stiff and the grip is a corded style. At 42 inches it feels like a regular wood, but it isn’t meant for hitting anything.

The app and your plan

TheStack builds a plan for you instead of giving every golfer the same one. After a baseline test, the app creates a speed workout based on your strength and twitch, since you might swing light weights fast but struggle with heavy ones, or the other way around. TheStack describes it as AI-powered training.

It isn’t a quick fix. You follow the plan two or three times a week at most, with max effort followed by rest.

The Stack Radar

The Stack Radar is similar to other small handheld speed radars. What sets it apart is the Bluetooth link to TheStack app, which makes a session nearly hands-free. Turn on the app and the radar, set the radar on the ground a few feet behind where you swing, and swing away.

Every swing speed is tracked, charted and applied, and the radar never missed any of my 492 training swings. You can also use it with golf balls at the range to get carry and ball speed. I’d get the full bundle since the radar works so smoothly with the app.

Results

I gained speed. The baseline test showed me swinging my driver around 100 mph, and I got up to 107 mph. When I took my driver to the range, I was consistently getting over 110 mph of clubhead speed.

The extra yardage was nice, but the bigger difference was stamina. I was still hitting good drives on hole 18 and felt less tired after rounds. My scores also moved from the 80s into the 70s over this stretch, and yardage will vary from golfer to golfer.

Wedge and putting programs

The wedge and putting modules are surprisingly fun and helpful. The wedge program takes a net or range, the radar and your wedges. You learn the feel of yardage by hitting precise shots, it only takes 15 minutes, and you can do it daily or on off days. I like how it builds distance control and consistency.

The putting program is built around a practice green, using the built-in module or a custom one you create for a smaller green. I built mine on the IGR backyard putting green since I have limited break and distance. I’m an OK putter, and the app pushes me to get better, with only a couple of tries to sink each putt.

The Learn section adds tutorial videos on the physical and mental sides of the game, and TheStack lists 60+ of them, curated by Dr. Sasho MacKenzie.

Should you buy it?

Buy the TheStack System Bundle if you want a speed program that adapts to you and tracks itself. The club, radar and app work together, I gained speed and stamina, and the wedge and putting programs are a bonus. For a different approach, see our SuperSpeed Speed Sticks Pro review.

Skip it if you don’t want to train two or three times a week at max effort, or if you already have a speed program you like. It is a training tool, not a club to hit balls with.

More on thestacksystem.com.