Watch it work
Michael Breed breaks down the Pro-Slot
The real cause
Over the top starts before your downswing
Most golfers fight the slice at impact — but by then the damage is already done. The breakdown happens a full second earlier, at the top of your backswing, where you can't see it and rarely feel it. Here's the chain reaction:
Your trail arm (right arm for right-handers) folds past 90° at the top.
That collapse breaks down your lead arm and narrows your swing arc.
A narrow arc has no room to drop the club into the correct downswing path.
Your only option left is to throw the club over the top — the slice, the pull, the thin contact you feel on the course.
The fix for coming over the top
Your slice starts at the top. So does the fix.
The Pro-Slot Trainer physically stops your trail arm from folding past 90°, so you feel the correct power angle on your very first swing — and the club drops into the slot instead of over the top.
Add to Cart — $69.99 →
The fix
Feel the correct position on your first swing
The Pro-Slot Trainer gently limits your trail arm to a perfect 90° power angle at the top. That keeps your lead arm extended and your arc wide — so the club naturally drops into the "pro slot" on the way down instead of getting thrown over the top.
Trains the 90° power angle
Gently stops your trail arm folding past 90°, so you groove the correct position instead of guessing at the right feel.
Simple & secure
A single hook-and-loop strap, worn on the bicep of your trail arm. On and off in seconds — no complicated setup.
Universal fit
Designed for right- and left-handed golfers of all ages and skill levels.
Practice anywhere
Lightweight and contoured, so it feels natural, not mechanical. Do slow rehearsal swings at home or hit balls with it at the range.
What changes in your game
More power, straighter shots, repeatable contact
Effortless power
A wider arc and full arm extension build greater clubhead speed — and unlock distance you've been leaving on the tee.
Straighter ball flight
Promoting a proper shoulder turn and swing path takes the over-the-top move out of your swing, for straighter, more controlled shots.
Repeatable consistency
Your muscle memory learns one connected, powerful move and repeats it — shot after shot, round after round.
Try this right now
Check your own position — no equipment needed
- Make a slow-motion backswing in front of a mirror and pause at the top.
- Look at your trail-arm elbow — is it near a 90° bend, or has it folded flat?
- If it's folded past 90°, that's your over-the-top move starting before you've even begun the downswing.
Awareness is step one. Training your body to hold that angle at real swing speed is the part that actually changes your ball flight — and that's exactly what the Pro-Slot Trainer is built to do.
Why golfers trust us
Over 40 years of training aids that actually work
For more than four decades, Golf Training Aids has done one thing: find the gear that actually works. We carry only the best, proven training aids — each one chosen and tested because it delivers real results on the course, not because it sells.
Get into the slot
Stop throwing it over the top
Train the one position that fixes the slice at its source — and start dropping the club into the pro slot on every swing.
Add to Cart — $69.99 →