This drill trains one of the most overlooked pieces of solid ball striking: alignment. If your body lines are off at address, the club will tend to organize itself around that setup, and your swing path can become steep and across the ball or excessively from the inside before you ever move the club back. The goal here is not to create a perfectly robotic stance. It is to make sure the alignments that matter most—especially your forearms and shoulders—support a neutral, repeatable starting direction. When you combine this with good hip hinge posture, natural arm hang, and a sound grip, you give yourself a much better chance to hit the controlled straight shot, draw, or slight fade most golfers should be building around.
How the Drill Works
This is a simple visual feedback drill using either a mirror or a camera from down the line. You begin by taking your normal setup: hinge from the hips, let the arms hang naturally, and grip the club as you normally would. Then you check whether the body lines closest to the club—your forearms and shoulders—are aimed appropriately relative to your target line.
The important idea is that not every body line has the same influence on the shot. Many golfers obsess over their feet and toe line, but those are not the first things to evaluate. In this drill, you prioritize:
- Forearm alignment
- Shoulder alignment
- Then, as you improve, pelvis and feet if needed
Why those first two? Because they sit closer to the club and have a stronger effect on how the club wants to move in the downswing. If your shoulders and forearms aim left of the target, the club will often want to work more steeply and across the ball. If they aim too far right, the club may want to approach too much from the inside, which can lead to blocks and hooks.
So this drill is really a setup calibration. You are teaching yourself to arrive at address with the right structure, so the downswing does not have to fight bad geometry.
What “square” really means here
For this drill, “square” does not mean every visible line on your body is perfectly parallel to the target line. It means the lines that matter most are organized well enough to support a neutral shot pattern. In practical terms:
- Your shoulders should look relatively square to the target line.
- Your forearms should also be relatively square.
- Your feet do not need to be perfect if the upper-body alignments are correct.
That is an important distinction. A golfer can have a slightly open or closed foot line and still be in a functional setup if the shoulders and forearms are in good position. On the other hand, if the shoulders and forearms are badly misaligned, a perfect toe line will not save the swing.
Why the right arm bend matters
One of the keys to getting the shoulders aligned properly is understanding the role of the trail arm. At address, your right arm for a right-handed golfer should have a little more bend than the left arm. The left arm is relatively straight, while the right arm is softly bent. That bend helps place the right shoulder slightly lower without forcing the shoulder line to aim in the wrong direction.
If both arms were equally straight in your golf posture, the shoulder blades would tend to get out of alignment. But when the right arm has its proper bend, the shoulders can sit more naturally and more square. This also puts the trail arm in a position that better matches what it will need later in the downswing and delivery.
Step-by-Step
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Set an alignment reference on the ground. Place an alignment stick, club, or visual line on the ground aimed at your target. This gives you a clear reference for what “square” should look like.
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Build your normal setup posture. Hinge from the hips, let your arms hang naturally, and take your grip. Do not stand artificially tall or force your arms into position just for the check. You want to evaluate your real setup.
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Use a mirror or down-the-line camera view. Position yourself so you can see your setup from behind the ball line. This angle makes it easier to compare your body lines to the target line.
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Check your shoulders first. Look at whether your shoulder line appears relatively parallel to the target line. If your shoulders aim left, you are likely setting up for a more out-to-in motion. If they aim too far right, you may be encouraging too much in-to-out path.
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Check your forearms next. Imagine a line running through your forearms. That line should also look relatively square to the target line. This is one of the most important pieces of the drill because the forearms are so closely connected to how the club wants to return.
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Notice the left-forearm-over-right look. From a down-the-line view, you should see a very slight amount of the left forearm sitting above the right forearm. This is subtle, but it is a useful checkpoint that your arm structure and grip are organized correctly.
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Confirm the arm bend relationship. Your lead arm should be close to straight, while your trail arm should have a modest amount of bend. For a right-handed golfer, that means the left arm is nearly straight and the right arm is softly bent. This helps the right shoulder sit lower without aiming the shoulders incorrectly.
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Ignore the feet unless they are wildly off. Do not get distracted by trying to make your toe line perfect. If your feet are only slightly open or closed but your shoulders and forearms are organized well, your setup can still be very functional.
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Make small adjustments and recheck. If your shoulders or forearms are misaligned, adjust your setup in tiny increments. Then look again. This drill works best when you train your eye to recognize the correct picture.
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Repeat until the picture becomes natural. The long-term goal is to make this setup automatic. Use the drill regularly until you can step in and build the correct alignments without needing constant visual confirmation.
What You Should Feel
Good alignment often feels different than what you are used to, especially if you have been compensating for poor setup for a long time. Here are the sensations and checkpoints you should look for:
- Your shoulders feel level to your posture, not twisted open or closed. One shoulder may sit lower because of the trail-arm bend, but the line across them should not feel aimed away from the target line.
- Your forearms feel connected to the target line. You should sense that the club is being held by arms that are organized neutrally, not dragged left or shoved right.
- Your trail arm feels softly bent, not pinned or over-folded. This bend should feel natural and athletic.
- Your lead arm feels long but not rigid. It should appear relatively straight without tension.
- Your setup feels balanced and ready to swing. The drill should not leave you feeling manipulated. It should feel like a functional athletic address position.
Useful visual checkpoints
- Shoulders relatively parallel to the target line
- Forearms relatively parallel to the target line
- Slight appearance of the lead forearm above the trail forearm from down the line
- Trail shoulder lower because of arm structure, not because the whole upper body is tilted and mis-aimed
If those pieces are in place, you are usually in a much better spot to produce a neutral path.
Common Mistakes to Avoid
- Obsessing over your feet first. Your toe line is not the best first checkpoint. Start with the shoulders and forearms.
- Trying to make every body line perfectly square. Golf setup is not a geometry contest. Focus on the alignments that most influence the club.
- Setting the shoulders open. This often encourages a steep, across-the-ball downswing and can lead to pulls, slices, or weak contact.
- Setting the shoulders too closed. This can make the club work too far from the inside, increasing the chances of blocks and snap hooks.
- Straightening both arms equally at address. This tends to throw off shoulder organization and removes the natural trail-arm structure you need.
- Forcing the trail shoulder down. The shoulder should be lower because the trail arm is bent, not because you are artificially crunching into your side.
- Checking alignment from the wrong camera angle. A poor camera position can distort what you see. Use a true down-the-line view whenever possible.
- Making huge corrections. Alignment errors are usually fixed with small changes. Overcorrecting can create a new problem.
- Ignoring your normal posture. If you stand differently just to pass the drill, you are not actually improving your setup.
How This Fits Your Swing
This drill matters because setup influences motion. A lot of golfers try to correct path problems during the swing when the real issue was present before the club even moved. If your shoulders and forearms are aimed poorly, your body and club will often make a very logical motion based on that setup—just not the motion you want.
That is why this drill fits directly into the larger picture of building a reliable swing. It supports:
- Better start direction
- More neutral swing path
- Easier transition
- Cleaner release patterns
- More predictable shot shape
For most golfers, the goal is not to hit dramatic hooks and slices on command. It is to own a neutral, controllable pattern—typically a straight shot, a small draw, or a slight fade. Proper alignment at address helps establish that pattern by putting the club and body in a position where the downswing can happen naturally.
It also ties in closely with the rest of your setup fundamentals. Good hip hinge posture, proper arm hang, and a sound grip all work together. If one piece is off, the others often start compensating. But when your posture is solid and your alignment is organized, the swing becomes simpler. You no longer need to rescue the club in transition or manipulate the path late.
Think of this drill as a way to remove hidden obstacles before the swing starts. If your alignments are sound, you give yourself a much clearer route to the ball. That makes every future piece of technique—backswing, transition, delivery, and release—easier to learn and easier to repeat.
In short, better alignment does not just help you aim better. It helps you swing better. When your shoulders and forearms are set correctly at address, the club has a much better chance to travel on the kind of path that produces solid, predictable shots.
Golf Smart Academy