What Happens When You Use Golf Clubs With the Wrong Shaft Flex? (2024)

What happens if you choose a shaft flex that is wrong for your golf swing? Bad things, my friends, bad things.

In another article, we wrote about some of the general reasons choosing the right shaft flex for your golf clubs in so important. But we wanted to get more specific: What are some specific examples of the effects of using a shaft flex that doesn't match your swing?

We put that question to golf club designer Tom Wishon, founder of Tom Wishon Golf Technology. What follows was written for us by Mr. Wishon.

Possible Outcomes When Using a Shaft Whose Flex Is Too Stiff for Your Swing

If a golfer is using a shaft that is too stiff for his or her swing mechanics and swing speed, any or all of the following may result:

1. The ball flies lower for any given loft, and possibly shorter in distance, because the golfer's best launch angle for maximum distance cannot be achieved.

2. The ball may tend to "leak" to the fade side of the target because the golfer cannot cause the desired forward bending of the shaft at impact, which helps bring the face back around to a less open position at impact.

3. The shot will probably feel less solid and more harsh, even when impact occurs in the center of the face, because of the different impact vibrations transmitted up the shaft to the golfer's hands.

Possible Outcomes When Using a Shaft That Is Too Flexible for Your Swing

If a golfer is using a shaft that is too flexible, here are the likely results:

1. The ball will possibly fly higher for any given loft. If the golfer is using the proper loft for his or her swing mechanics, this could cause a slight decrease from the golfer's maximum potential distance. On the other hand, if the golfer is using too little loft, which is the case with a very high percentage of players today with the driver and 3-wood, the more flexible shaft could bring his launch angle up to a more optimum trajectory, which could actually result in an increase in their distance.

2. The ball may tend to draw a bit more from the forward bending of the shaft at impact causing the face to rotate past square to be slightly closed. However, if the golfer happens to slice or fade the ball, this actually could help reduce such a misdirection tendency.

3. The shot will feel more solid because impact vibrations transmitted up to the hands along a shaft which is both more flexible and more bent will feel more solid.

It's Better to Err on the Side of More Flexibility

The best thing to do is make sure your shaft flex is well-matched to your swing (by meeting with a clubfitter or at least a teaching pro in a hitting bay when buying new clubs). But when in doubt, always err on the side of more flexibility in the shaft. That should be obvious from the numbered items above, some of which in the "Too Flexible" section are actually positives.

Thus each golfer must take a look at his or her natural swing tendencies before selecting the shaft flex best for their overall game. But at the end of the day, the majority of golfers with swing speeds of 100 mph and lower are going to do far more harm for their game by choosing a shaft that is a little too stiff rather than a shaft that ends up being a little too flexible.

What Happens When You Use Golf Clubs With the Wrong Shaft Flex? (2024)

FAQs

What happens if I use the wrong flex shaft? ›

The shot will probably feel less solid and more harsh, even when impact occurs in the center of the face, because of the different impact vibrations transmitted up the shaft to the golfer's hands.

What happens if shaft flex is too soft? ›

Incorrect flex

A golfer using a shaft that is too flexible may experience a ball flight that is too high, a ball that spins too much, or a shot pattern that has inconsistent dispersion.

What happens if you swing too slow with a stiff shaft? ›

The ultimate result is that the player will struggle to hit the ball farther. Slower clubhead speeds will frustrate energy transfer through the club head, making it more difficult for the player to hit the ball farther.

Can the wrong flex shaft cause a slice? ›

Check your shaft flex

For sake of brevity though, we'll look at the most common perspective, which is to say if your shafts are too stiff for your swing you'll then hit a lot of slices. This is especially true with shafts that are stiffer toward the tip and that have lower torque ratings.

How do I know if my shaft is too weak? ›

Generally speaking, a driver shaft that's too stiff will cause shots to launch too low, with too little spin and low peak heights. A shaft that's too weak, on the other hand, may cause shots to spin too much, fly too high, and widen dispersion patterns.

Will I hit further with a stiffer shaft? ›

If you have a fast swing, a stiff flex may be the right choice for you. However, if you have an average swing speed and could use a little help with distance, a regular flex shaft could be a better fit. Test your swing with different shaft flexes to find the one that works best for your game.

Does shaft flex really make a difference? ›

The 'flex' of your driver – that's the bending or firmness of the shaft – can make a real difference to your drives on the green. It encapsulates the goldilocks principle – not too tough, not too soft – and could be the secret ingredient to perfecting your game.

Does a soft shaft cause a slice? ›

MISSES STARTING LEFT AND TURNING BACK RIGHT (PULL FADE OR SLICE) Typically caused by an outside-to-inside swing path and a shaft that is too soft in the butt and/or the tip. Stiffening the butt section first MAY help but you typically need a firmer tip section to keep the ball from moving to the right as much.

Can the wrong shaft cause a hook? ›

Misses mostly right(push or slice): Shaft may be too stiff in the butt section (S flex when should be an R) or shaft is too heavy. Misses mostly left(pull or pull hook): Shaft is too flexible in the butt section and/or shaft is too light.

How do I know if I need regular or stiff flex? ›

According to the chart, an average golfer who swings a 6-iron between 75 - 83mph should have a regular flex shaft. A golfer who swings that same iron between 84 - 91mph should use a stiff flex shaft.

Will a weak shaft cause a hook? ›

Shaft with softer tip sections or more torque will want to twist shut quicker than stiffer, more stable shafts, particularly at speed and this is quite often the cause of a hook but what it will also often do is illicit a reaction from the golfer to keep their hands way open avoiding the left side, often creating a ...

Is there a downside to a stiff shaft? ›

Choose a shaft too heavy and too stiff and you will inevitably swing a touch slower and consequently struggle to square the face at impact, causing you to miss more shots low and right.

Do pros play with stiff shafts? ›

There's a popular line of thought that golf professionals use stiff shafts in their game. This is mostly true, but it comes down to swing speed. Golf pros tend to have slightly higher swing speeds than average or even advanced players, and therefore, their shafts have a propensity to be a bit more stiff.

At what ball speed should I get a stiff shaft? ›

6.0 - Stiff flex: You swing 97-104 mph with the driver. 5.5 - Regular flex: You swing 84-96 mph with the driver. This is the average golf swing speed range for an amateur golfer. 5.0 - Senior flex: You swing less than 83 mph with the driver.

Will stiffer shaft lower ball flight? ›

It can be generally said that the more flexible a shaft is, the higher the launch profile and spin will be. The stiffer the shaft is, the lower the launch profile and the less spin there will be.

Can I use a senior flex shaft? ›

Originally referred to as the amateur flex (A) and mature or medium flex (M), the Senior Flex club is for those who hit between 75-85 miles per hour with a carry distance of 180 to 200 yards.

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