How do you create more clubhead speed without sacrificing center contact, control or the ability to repeat your swing under pressure?

Mark Immelman sits down with respected golf instructor Adam Harrell, longtime coach of PGA TOUR player Michael Brennan, to explore the principles behind one of Mark’s favorite swings in professional golf.

Harrell began working with Brennan as a young player with aspirations of reaching the PGA TOUR. From the beginning, speed was intentional—but never at the expense of fundamentals. The result is a swing built around center contact, neutral fundamentals, an efficient clubhead orbit, proper release, rhythm and the freedom to let the club move fast.

Throughout the conversation, Mark and Adam unpack how everyday golfers can apply those same principles to their own games.

In This Episode, You’ll Learn: 

1. Why speed should be trained as a skill
2. How Michael Brennan developed clubhead speed from a young age
3. Why center contact remains the foundation of distance
4. How to increase speed without losing balance or control
5. Why even a 1 mph improvement matters
6. How a golfer’s mental “governor” can limit speed
7. Why neutral fundamentals make a swing easier to repeat under pressure
8. The importance of grip, setup, ball position and takeaway
9. How the clubhead should naturally orbit around the golfer
10. Why the body and club must work in harmony
11. How the hands and arms contribute to speed
12. Why energy transfer matters more than simply moving your body faster
13. What golfers misunderstand about “flipping” and releasing the golf club
14. How Tiger Woods and Rory McIlroy demonstrate an effective release
15. Simple drills for improving plane, release and clubhead speed
16. How a metronome can improve putting distance control and full-swing tempo.

 Key Takeaways:

• Speed Is a Skill You Can Train – One of the most important ideas Harrell introduced to Brennan as a junior was simple: go faster intentionally. Instead of hoping speed would appear as his technique developed, they measured clubhead speed, established numerical goals and practiced producing progressively more speed. But there was an important condition: speed still had to work alongside center contact and a functional golf swing.
• One Mile Per Hour Is Still Progress – Golfers often expect dramatic increases when beginning speed training. Harrell recommends a more patient approach. Establish your current maximum, try to beat it and gradually raise the ceiling. One additional mile per hour may not sound dramatic, but incremental gains accumulate—and a few extra miles per hour can eventually translate into meaningful additional distance.
• Sometimes You Need Permission to Go Faster – Harrell shares the example of a 14-year-old student already swinging her driver around 96 mph. After challenging her to reach 100 mph, she broke through that barrier almost immediately. The lesson goes beyond physical ability: golfers sometimes place an unconscious ceiling on themselves. Giving yourself permission to swing faster can reveal speed you already possess.
• Build Speed on Top of Fundamentals – Michael Brennan’s swing is fast, but it is also exceptionally organized. Harrell emphasizes a neutral grip, sound ball position, proper alignment and a reliable setup before adding speed. His philosophy is to eliminate unnecessary variables so the golfer has fewer compensations to make during the swing. A neutral foundation makes it easier for the motion to repeat when pressure rises.
• Impact Is Everything – Drawing from his time working with Jim McLean and the influence of John Jacobs, Harrell repeatedly returns to impact. The objective is not simply to produce an attractive golf swing. The positions and aesthetics should serve a functional purpose: controlling the clubface, finding the center of the face and delivering the club efficiently. Speed is then layered on top of that structure.
• Let the Club Find Its Orbit – One of the defining characteristics of Brennan’s swing is the journey of the clubhead around his body. Rather than constantly manipulating the golf club into positions, Harrell describes the club as moving in a relatively neutral “orbit.” Even when Brennan swings aggressively, the club continues to travel efficiently around him. The result is a motion that is both aesthetically pleasing and highly functional.
• Neutral Makes Golf Easier Under Pressure – Harrell is a strong believer in building from neutral whenever possible: i. Neutral grip (ii) Neutral setup (iii) Neutral takeaway (iv) Neutral club plane (v) Neutral club path. There are great golfers with unconventional matchups, but every deviation requires another piece of the swing to match it. Starting from neutral can reduce the number of compensations a golfer must time correctly under pressure.
• Don’t Leave the Clubhead Behind – A common mistake when golfers try to create more speed is simply moving the body harder and faster. The golfer turns aggressively—but the clubhead never receives that energy. Harrell suggests training the hands and arms to move quickly as well. One drill uses a wider, almost bow-legged stance to restrict lower-body movement while seeing how much speed the golfer can produce primarily with the hands, arms and club. Many players are surprised by how much clubhead speed they can create without violently moving their bodies. The ultimate goal is coordination: body speed, arm speed and clubhead speed working together.
• Golf Is an Energy-Transfer Game – Creating speed is not simply about how aggressively the golfer moves. Energy has to successfully travel through the system and ultimately reach the clubhead. If a golfer creates enormous force with the body but fails to transmit that energy to the club, the effort is wasted. Identifying those “power leaks” is one of the keys to effective speed training.
• Let the Club Release – The word “flip” has developed a negative reputation in golf instruction. Harrell argues that golfers should think instead about releasing the energy of the club at the correct time. Great players do not simply drag the handle through impact. Tiger Woods and Rory McIlroy provide excellent examples of golfers who allow the club to release and rehinge aggressively through the hitting area while maintaining control. The timing has to match the golfer’s grip and overall motion—but the clubhead must eventually be allowed to go.
• Try the L-to-L Drill – One of the simplest drills discussed in the episode is also one of the most useful. Swing from an “L” created by the lead arm and club on the backswing to another “L” on the follow-through. The goal is to feel the clubhead moving freely, hinging and rehinging while traveling on a functional plane. Harrell also suggests visualizing two golf stand bags—one behind and one ahead of you—and imagining the club handle fitting into each bag during the backswing and follow-through. It provides a simple visual for getting the club onto a neutral plane without becoming overly technical.
• Let the Turn Multiply the Speed – Once the golfer learns how to move and release the club properly, adding more body turn can multiply that speed. Instead of using rotation as the entire source of power, the body helps add energy to a clubhead that is already moving efficiently. Train the club first. Then allow the body to support and amplify it.
• Find Your Own Tempo – Late in the conversation, Mark and Adam turn to another important component of Brennan’s development: rhythm. Brennan has used a metronome in his putting practice to develop consistent cadence and distance control. Harrell emphasizes that there is no universal perfect tempo. Some golfers naturally move faster while others have longer, more languid motions. The goal is to discover your most effective cadence and train it until it becomes automatic.
• Use a Metronome to Train Distance Control – A golfer can make a six-foot putt and a 40-foot putt using essentially the same overall stroke time. The longer putt simply requires a longer motion and a different acceleration profile. That same principle can extend beyond putting into wedge play and even the full swing. Rather than simply trying to “swing harder,” golfers can develop a consistent rhythm while allowing the length and energy of the motion to produce different distances.

Memorable Quotes:

“There’s no better way to gain speed than to hit the center of the club face.”

“Going fast is a skill you’re practicing.”

“One mile an hour is better.”

“Impact is everything.”

“The club is really orbiting in a nice plane.”

“I’m a big fan of those neutral-looking swings.”

“Releasing the energy that you’ve built up at the right time.”

“Finding that natural rhythm of your swing is unbelievably important.”

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