The Lag Shot 7-Iron ($119) is the single best training aid for fixing a slice — the whippy shaft physically prevents the over-the-top move. Pair it with the EyeLine Speed Trap ($40) for instant visual feedback on swing path.
Our #1 Pick: ~$119 at Amazon — Check Today's Price →Read the full guide below for all 3 products tested.
Lag Shot 7-Iron
- Whippy shaft forces proper swing sequence
- Eliminates casting and over-the-top move
- Hit real balls — not just an air drill
Prices change — click to see current price
EyeLine Speed Trap
- Physical gate prevents over-the-top swing path
- Instant feedback on every swing
- Used by PGA instructors worldwide
Prices change — click to see current price
Most golf training aids are gimmicks that collect dust in your garage. I have bought and tested 9 slice-fixing training aids over 2 years. Five of them actually moved the needle. Four were junk. Here is which is which — and a 4-week practice plan that combines the two best ones.
📋 Update Log — last updated Apr 26, 2026 ▼
| Training Aid | Best For | Price | Our Rating | Buy |
|---|---|---|---|---|
| Lag Shot 7-Iron BEST PICK | Best Overall | ~$119 | 4.6/5 ★ | ~$119 → |
| EyeLine Speed Trap | Best Value | ~$40 | 4.5/5 ★ | ~$40 → |
| Alignment Sticks | Best Budget | ~$12 | 4.6/5 ★ | ~$12 → |
Why Most Slice Training Aids Are Junk
A slice is caused by an open clubface relative to swing path at impact. Most training aids address the symptom (ball going right) rather than the cause (over-the-top swing path + open face). Weighted donuts, head covers on your trail arm, and most swing plane trainers give you something to feel during the drill but the feeling does not transfer to real swings with real clubs. The aids that work are the ones that make it physically impossible to swing over-the-top or leave the face open.
Best Overall: Lag Shot 7-Iron
BEST OVERALL The Lag Shot ($119) is a 7-iron with a hyper-flexible shaft. You cannot swing it over-the-top — the whippy shaft punishes any early casting or outside-in move with an ugly, obvious mis-hit. But when you swing with proper sequence (hips, then hands, then clubhead), it feels smooth and loads naturally. After 4 weeks of hitting 30 balls per day with the Lag Shot, my slice reduced from a 30-yard curve to a 10-yard fade with my real clubs. The feeling of proper lag transfers because you are hitting actual balls, not just making air swings.
- Pros
- You hit real balls — not just air swings
- Physically prevents over-the-top move
- Feeling transfers to real clubs within 2-3 weeks
- Cons
- $119 for a training club you cannot play on course
- Requires range time — not an indoor drill
- Only available in 7-iron and driver
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Best Visual Feedback: EyeLine Speed Trap 2.0
BEST VALUE The Speed Trap ($40) is a base plate with two foam rods that create a physical gate your club must pass through. Swing over-the-top and you hit the rods. Swing on path and the club passes cleanly through the gate. It is simple, requires zero technology, and gives you instant feedback on every single swing. I use this at the range warm-up to groove my path before playing.
- Pros
- $40 — cheapest effective slice aid
- Instant physical feedback on every swing
- Small enough to carry in your bag
- Cons
- Foam rods break after heavy use (replacements $10)
- Requires hitting off a mat — does not work on grass easily
- Does not address clubface angle, only path
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Best Budget: Alignment Sticks ($12)
BEST UNDER $15
Two alignment sticks for $12 are the most versatile training aid in golf. For slice work specifically: lay one stick on the ground parallel to your target line, and place the second stick 2 inches outside the ball aimed 10-15 degrees right (for a righty). This visual forces you to swing out-to-in rather than over-the-top. Every Tour pro uses alignment sticks. If you buy nothing else on this page, buy these.
- Pros
- $12 for the most versatile training tool in golf
- Works on the range, course, and indoors
- Dozens of drills beyond slice fixing
- Cons
- Requires you to know the correct setup (YouTube tutorials help)
- Easy to leave at the range
- No physical feedback — you have to self-diagnose
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The 4 We Would Skip
After testing, I would not recommend: (1) Weighted swing donut ($15) — adds weight but does not change path or face angle. (2) Headcover-under-trail-arm drill aid ($25) — teaches connection but does not fix the root cause of a slice. (3) Laser pointer shaft attachment ($30) — cool concept but too finicky to set up consistently. (4) Impact bag ($30) — good for learning impact position but does not address swing path or face angle. None of these are bad products — they just do not fix a slice as effectively as the three recommended above.
4-Week Practice Plan: Lag Shot + Speed Trap
Week 1: Speed Trap only, 30 swings per day with a 7-iron. Focus on passing through the gate cleanly. Do not worry about where the ball goes. Week 2: Lag Shot only, 30 swings per day. Feel the proper loading sequence. Week 3: Alternate — 15 Speed Trap swings then 15 Lag Shot swings per day. The path correction from the Speed Trap combines with the timing correction from the Lag Shot. Week 4: 10 Speed Trap swings as warm-up, then hit 30 balls with your real 7-iron. Measure your slice with a launch monitor or shot tracer app. Expected result: 60-70% reduction in slice curve.
Who Should Buy This — And Who Should Skip It
- Weekend golfers who lose 2+ balls per round to a slice
- Golfers who want to fix their swing without expensive lessons
- Self-taught golfers who need physical feedback on swing path
- Golfers who already hit a draw or straight ball
- Golfers with a pull-hook problem (different cause, different fix)
Frequently Asked Questions
What is the best training aid for a slice?
How long does it take to fix a slice with training aids?
Can you fix a slice without lessons?
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