How to Use Your Legs in the Golf Swing for More Power
Andy Proudman's TPI assessment points to a common power leak: late lead-leg pressure. Learn how mobility, posture and…
If your driver gets steep, cuts across the ball, or sends shots starting and curving offline, the problem may not be your hands first. It may be the way your body moves before the club ever gets to the ball.
The pattern Piers Ward worked on with Christie was simple to understand: she was swaying in the backswing, then lunging forward with her upper body in the downswing. That made the club work steep and across the ball.
The fix was not to force the club into a shallow position. It was to improve the body movement that allowed the club to shallow naturally.
To hit driver straighter, check whether you are swaying away from the target in the backswing and then lunging your upper body forward in transition. That combination can create an over-the-top golf swing where the club gets steep and cuts across the ball.
A better pattern is:
An over-the-top driver swing means the club is travelling too much from outside the target line and across the ball through impact. For many golfers, that creates weak cuts, slices, pulls, or a ball flight that never really starts where they expect.
The driver makes this fault feel worse because the club is longer, the ball is teed up, and golfers often try to add speed. If your upper body takes over from the top, the club can get thrown out and steep before the lower body has had a chance to lead.
Christie’s own description was clear: she wanted to stop coming over the top and use her lower body more. Those two points were linked. The lesson was not about making a prettier backswing; it was about changing the movement that controlled the downswing.

The key diagnosis was a sway-lunge pattern.
In the backswing, Christie’s lead hip moved too far away from the target. That lateral movement blocked the space she needed to turn and sequence properly. Then, in transition, her upper body moved too far forward. The result was a spine position that pushed the club steep and across the ball.
That is why a golfer can feel as if they are trying to shallow the golf club, but still keep seeing the same steep delivery. If the body is moving in a way that closes down space, the arms and club have nowhere useful to go.
The better move is to rotate the hips more cleanly in the backswing, then let the lower body start the downswing while the upper body stays back for a fraction longer. That gives the arms room to drop and gives the club a better chance to approach from a neutral path.

The first drill gives your body a simple reference.
Place a club on the ground just inside your trail heel. Then put another club or shaft across your shoulders and get into driver posture. As you turn back, your job is to match the shoulder shaft to the club on the ground without sliding your hips away from the target.
If you sway, the matchup becomes difficult. If you rotate better, the drill immediately feels cleaner.
This is useful because it gives you a physical checkpoint instead of a vague swing thought. You are not just telling yourself “turn better.” You are giving the body a reference for what better actually looks and feels like.

Once the backswing is more stable, the next job is transition.
Piers described the downswing like a relay race: lower body first, then torso, then arms, then hands and club. If the hands and upper body go first, the club is much more likely to get steep. If the lower body starts first, the club has time to fall behind you and shallow.
A useful feel is to make your backswing, then let the hips start moving toward the target while your upper body feels as if it stays back. It may feel slow or exaggerated at first. That is normal. You are teaching the sequence before you ask for full speed.
The important checkpoint is this: the lower body leads, but the upper body does not lunge. If you need a broader guide to this movement, MMG also has a related lesson on how to use your legs in the golf swing.

Many golfers make a good practice swing, then lose the move when the ball is there. That is why feedback matters.
In Christie’s case, the practice swing showed a much better spine position halfway down. When she hit the ball, the old lunge could still appear. Once the feedback narrowed the focus to one priority, she could connect the feel to the actual shot.
The goal was not perfection. Moving from a big forward lunge to a much smaller one was already a strong improvement. As the spine stayed more stable and the lower body started first, the club path moved away from the over-the-top pattern and became more neutral.
This is the point where technology can be useful: not because it replaces coaching, but because it gives you clear feedback on the movement you are trying to change. It also helps connect this lesson to the bigger idea of golf swing sequence: the body needs to work in the right order for speed and control to transfer.

If you still sway off the ball, exaggerate the feeling of resisting that movement.
Andy helped create this feel by adding resistance around Christie’s waist. The purpose was to make her lower body work harder to stay stable instead of sliding. You can recreate the idea more simply by feeling pressure load into the inside of your trail foot, as if you are ready to move athletically without being pulled off balance.
The feel is not a collapse into the trail side. It is a strong, athletic load. From there, you can push and shift toward the target while keeping the upper body from racing forward.
Think of it as: load into the trail side, then let the lower body lead the downswing.

One important coaching detail: do not change everything at once.
As Christie improved the sequence, the club path got better and the ball started flying straighter. Piers noticed that her grip was strong, which could matter later if the better path starts producing too much left curve.
But the grip was not the first change. That matters. If the main fault is sway plus upper-body lunge, changing the grip before the body pattern improves may simply add another variable.
Work in this order:
You may be swaying away from the target in the backswing and then lunging your upper body forward in transition. That pattern can push the club steep and across the ball.
Create better space first. Rotate the hips without sliding, then start the downswing with the lower body so the arms and club can fall into a better path.
Not automatically. If your path is still over the top, fix the body movement and sequence first. Check the grip later only if the improved path starts sending the ball too far left.
If you want clearer feedback on whether your swing is improving, use the Swing Coach app to check the movement you are trying to change.
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