If you tend to hit fat shots, thin shots, pulls, or weak push-fades, there is a good chance your trail arm is part of the problem. Many golfers try to fix an early release by focusing only on the lead wrist, but the trail arm can still undo that work if it straightens and throws the club the wrong way through impact. The trail arm stop sign drill teaches you how to keep the trail wrist extended while also rotating the forearm correctly through the strike. That combination helps move the bottom of the swing forward, improves contact, and gives you a more stable follow-through.
How the Drill Works
The purpose of this drill is to train a better release pattern with your trail arm. For a right-handed golfer, that means learning how the right wrist and right forearm should work from impact into the follow-through.
When golfers scoop or flip, the trail arm often drives the mistake. The wrist may lose its structure too early, or the hand may work too far under instead of rotating through. Even if you are trying to keep the trail wrist bent back, you can still create poor contact if the arm path is moving upward too soon. That sends the clubhead up early, leaves the low point behind the ball, and produces the classic fat-thin pattern.
This drill gives you a different intention. Instead of trying to simply “hold off” the flip, you train the trail arm to:
- Maintain extension in the trail wrist through impact and just beyond
- Rotate the forearm through the ball instead of letting the hand work under too much
- Extend the arm outward toward the target line in the follow-through
- Keep width in the release so the club does not bottom out too early
The “stop sign” image is useful because it gives you a simple picture: as the trail arm moves through, the palm feels as if it is turning more toward the target, almost like showing a stop sign in front of you. That does not mean you are rolling the hand wildly or throwing the shoulder out. It means the trail forearm is rotating while the arm continues to extend through the strike.
If you do it correctly, your follow-through will look wider and more structured. The trail arm will not collapse immediately, and the club will not shoot upward too early. That is a key difference between a strong release and a scoop.
Step-by-Step
-
Start with a simple visual. You can use a training aid, a noodle, or even just your hand to give yourself a clear sense of where your trail palm is pointing. The goal is to become aware of whether your trail hand is working under too much or rotating more out toward the target.
-
Set up without a ball at first. Make small rehearsal swings and focus on your trail hand after impact. Feel the trail wrist stay extended while the forearm rotates so the palm begins to face more forward, like a stop sign.
-
Avoid lifting the arm with the shoulder. The motion should not come from your trail shoulder flying away from your body. Instead, feel the arm reaching outward through the shot with support from the body and shoulder blade area, not a disconnected upper-arm lift.
-
Rehearse with trail arm only. Hit short, soft shots using only your trail arm. Your job is to keep the wrist structure through impact and let the forearm rotate through the follow-through. You should see a longer, wider extension after the strike.
-
Move to a 9-to-3 swing. Add your lead hand, but let it support what the trail arm is doing rather than taking over. Swing from about hip high to hip high and keep the same stop-sign sensation through the ball.
-
Watch the launch. On these shorter swings, a slightly lower launch is often a good sign. It usually means you are delivering less scoop and more forward low point. You are not trying to hit floaty, high, weak shots here.
-
Build to a three-quarter swing. Keep the same release pattern and let the body continue moving through. The bigger swing should not change the trail arm’s job. You are still extending through and rotating, not flipping under.
-
Progress to full swings. Once the feel is stable, take it into a fuller motion. Through impact, feel the trail arm extending while the wrist stays hinged long enough and the forearm rotates so the palm works more toward the target.
-
Use ball flight as feedback. Better strikes, more centered contact, and less fat-thin variation tell you the drill is working. If you still see pulls or weak blocks, check whether the trail arm is reverting to its old pattern.
What You Should Feel
The best drills are built around clear sensations. With the trail arm stop sign drill, you want a few specific feelings.
1. The trail wrist stays structured through impact
You should feel that the trail wrist does not immediately dump its angle at the ball. It stays extended through impact and just into the follow-through. This is not a stiff or frozen motion, but it is definitely more organized than a flip.
2. The forearm rotates through instead of working under
This is the heart of the drill. Many golfers hear “keep the wrist bent back” and then move the hand too much underneath them. That can still make the club rise too early. The better feel is that the trail forearm rotates while the arm extends, so the palm gradually works more toward the target.
3. The arm extends out, not just up
In a scoop, the club often moves upward too soon. In this drill, you want to feel more width through the strike. The trail arm extends outward down the line before the club naturally folds up in the follow-through.
4. The body supports the arm motion
This is not an isolated hand action. Your pivot still matters. The body keeps moving, and the arm is being carried through by that motion. Think of it as the body swinging the arm, while the trail arm supplies a better release pattern.
5. Contact happens before the club rises
If you are doing the drill well, the bottom of the swing should move more forward. That means the club strikes the ball before it climbs upward. This is why the drill can be so effective for players who struggle with fat and thin contact.
Checkpoints you can use
- Your follow-through looks wider from face-on view
- The trail arm is extending, not collapsing immediately
- The trail palm feels as if it turns more toward the target after impact
- The club does not shoot straight up right after the ball
- Your contact becomes more predictable, especially on short swings
Common Mistakes to Avoid
- Trying to hold the flip without changing direction. If you only try to “keep the wrist bent back” but still move the hand under, the low point can stay behind the ball.
- Lifting with the trail shoulder. The trail arm should not fly away from your body as a compensation. That creates a disconnected release.
- Over-rolling the forearm. The stop-sign feel is a controlled rotation, not a violent roll of the hands.
- Skipping the short-swing stage. If you go straight to full speed, you may miss the feel entirely. Learn it first in one-arm and 9-to-3 swings.
- Expecting a high launch on the drill shots. A lower, more compressed flight on short rehearsals is often a sign you are reducing scoop.
- Letting the lead hand dominate. In the early stages, the lead hand should support the motion, not take over and hide what the trail arm is doing.
- Forgetting the body motion. This is a release drill, but it still works best when your chest and pivot continue moving through the strike.
- Confusing extension with stiffness. You want structure and width, not tension. If your arm is rigid, the drill will feel forced.
How This Fits Your Swing
The trail arm stop sign drill is not just a fix for one isolated position. It connects directly to how you deliver the club through impact and into the follow-through.
If your trail arm releases too early, several problems tend to show up together:
- Scooping or flipping through impact
- Fat and thin contact from a low point that stays back
- Pulls when the path shifts too far left
- Weak pushes or push-fades when the face stays open
That is why this drill matters. It helps you improve the way the club is delivered, not just the look of your wrists at impact. A better trail arm release can clean up strike quality, launch conditions, and start direction all at once.
It also fits well with other concepts that train a more stable release. If you have worked on lead wrist flexion, a flatter lead wrist, or “motorcycle” feels, this drill can be the missing piece. Those lead-side ideas can help, but if the trail arm is still throwing the club improperly, you may never fully get rid of the early release.
In that sense, this drill gives you another route to the same goal: a more forward low point, better shaft delivery, and a stronger follow-through. It is especially useful if you are the kind of player who can make decent rehearsal swings but loses the structure once speed is added. The trail arm often reveals itself under speed.
As you improve, the drill should blend into your normal motion. You will not need to exaggerate the stop-sign feel forever. But in practice, that exaggeration is valuable because it teaches your trail arm to do something different from its old habit.
Ultimately, you are training a release that is more functional and less reactive. Instead of trying to save the shot at the bottom with your hands, you are teaching the trail arm to extend and rotate in a way that supports solid impact. That is a big step toward eliminating the scoop and building a strike that holds up under pressure.
Golf Smart Academy