What Is a Regular Plus Golf Shaft?

Ever found yourself staring at a wall of golf shafts, totally overwhelmed by terms like stiff, regular, and senior? It’s a common feeling. But what about the shafts that live in between those categories, like the Regular Plus? This isn’t just another piece of jargon, it’s a specific solution for a huge number of golfers who are stuck in the middle. This article will break down exactly what a Regular Plus golf shaft is, who it’s designed for, and how you can figure out if it's the missing piece in your golf bag.

What is a Golf Shaft Flex? A Quick Refresher

Before we can talk about a Regular Plus, we need to be on the same page about shaft flex itself. In the simplest terms, shaft flex is a measure of how much a golf shaft bends during the swing. A golfer with a very fast, powerful swing will bend the shaft a lot, while a player with a slower, smoother tempo will bend it less.

Why does this bending matter? It has a big influence on several key parts of your shot:

• Trajectory: A more flexible shaft tends to bend forward more at impact, adding loft and resulting in a higher ball flight. A stiffer shaft has less of this “kick,” usually producing a lower, more piercing trajectory.
• Feel: This is subjective, but important. The right flex will feel “active” and smooth, allowing you to feel the clubhead throughout the swing. The wrong flex can feel either wild and “whippy” (too soft) or like an unbending board (too stiff).
• Control: The correct flex helps the clubface return to a square position at impact more consistently. This leads to tighter shot dispersion and more accuracy.

Manufacturers generally use a letter-based system to categorize flex, which corresponds loosely to a player's swing speed with a driver:

• L (Ladies): Below 75 mph
• A (Senior/Amateur): 75-85 mph
• R (Regular): 85-95 mph
• S (Stiff): 95-105 mph
• X (Extra Stiff): 105+ mph

The "In-Betweener": Introducing the Regular Plus Shaft

Now, look at those swing speed buckets. What if your driver swing is consistently 94 mph? Or maybe you swing at 90 mph, but you have a very aggressive, fast transition from your backswing to your downswing. You’re A-Team Goldilocks - the Regular flex feels a little too soft, but the Stiff flex is just too much to handle.

This is precisely where the Regular Plus (often labeled as R+) shaft shines.

A Regular Plus shaft is a golf shaft intentionally designed to be firmer than a standard Regular flex, but more flexible than a Stiff flex. It’s the "in-between" option built to bridge the gap for a massive population of amateur golfers. You won't always see it labeled as "Regular Plus." Different brands have their own way of naming it:

• Project X: Uses a numbering system. A 5.0 is Regular, a 6.0 is Stiff, and the hugely popular 5.5 is their version of a Regular Plus.
• Mitsubishi (Tensei): labels it as R2 Flex and places it between R and S.
• Other Brands: You might see it called “Firm” or “F” by some manufacturers.

Think of it as adding a half-size to your shoe collection. For many people, a whole size up or down is too much, but that half-size is the perfect fit. That’s what Regular Plus provides for your swing.

Who Should Play a Regular Plus Shaft? The Telltale Signs

So, could this be you? Finding the right shaft is about matching it to your unique swing DNA. Here are the key indicators that you might be a perfect candidate for a Regular Plus shaft.

1. Your Swing Speed is on the Cusp

This is the most straightforward sign. If you’ve been on a launch monitor and find your driver swing speed consistently falls into the 92-98 mph range, you're in the prime zone for R+. A standard Regular shaft might struggle to keep up with your speed, causing inconsistency. At the same time, you may not have the extra MPH needed to properly load and release a true Stiff shaft, costing you feel and distance. The R+ offers the stability you need without the harshness of a full step up to Stiff.

2. Your Shot Pattern Tells a Story

Your ball flight is a fantastic messenger. It can tell you a lot about whether your equipment is helping or hurting you. Listen to what it’s saying.

Signs Your REGULAR Shaft is Too Soft:

• Your shots launch high and seem to "balloon" or stall in the air, falling out of the sky with little rollout.
• When you try to "go after one" and swing a little harder, your common miss is a hook or a sharp pull to the left (for a righty).
• The club feels “loose” or hard to control at the top of your swing and through impact. You feel like you're fighting to time it up.

If this sounds familiar, the whippiness of the Regular flex is likely causing the clubhead to twist closed a little too much or get ahead of your hands, sending the ball left. An R+ shaft would provide just enough extra stiffness to stabilize the head and straighten out that "over-swing" miss.

Signs Your STIFF Shaft is Too Hard:

• You struggle to get good elevation on your shots. Your driver flight is low, and your irons come in flat with not much stopping power.
• Your typical miss is a weak shot to the right - a slice or a push-fade.
• The shaft feels dead, unresponsive, or like you’re swinging a piece of rebar. You have to put max effort into every swing just to feel the clubhead load.

In this case, you aren't generating enough force to bend the Stiff shaft properly. As a result, the clubface lags behind and comes into impact in an open position. An R+ shaft would allow you to load the club properly with your normal swing, leading to a better launch and allowing the face to square up naturally.

3. You Have a Fast Tempo or Aggressive Transition

Your golf swing isn't just about total speed, it's also about a hundred tiny moves. Tempo and is a critical one - specifically, how you change direction from the backswing to the downswing.

Two golfers can have the same 90 mph swing speed. Golfer A has a very smooth, flowing, one-piece move. Golfer B has a quick, aggressive "rip" at the ball from the top. Golfer A will probably do great with a Regular shaft. Golfer B, however, is likely putting a massive amount of load on the shaft in a very short amount of time. That abrupt force can overpower a Regular shaft, causing the same hooks and inconsistency we discussed earlier.

For Golfer B, the Regular Plus shaft is a game-changer. It provides the stability to handle that rapid move, so the shaft doesn't get "left behind," leading to better timing and a more controlled feel through impact.

How to Find Your Perfect Shaft

If any of the signs above resonate with you, the next step is to confirm the diagnosis. A professional club fitting is always the best path, but you can do some great preliminary work on your own.

1. Get Your Numbers: Find a local golf shop or driving range with a launch monitor like a TrackMan, GCQuad, or Foresight. A 30-minute session is often inexpensive and will Arm you with vital data: clubhead speed, ball speed, launch angle, and spin rate. This objective information is the foundation of a good fit.
2. Hit Everything: Demos are your best friend. A fitter can provide this, but so can most big-box golf stores and course demo days. The key is to run an controlled test. Hit your current club, then the same head model with a Regular, a Regular Plus, and a Stiff shaft. Don’t hit more than 5-6 balls with each.
3. Focus on Feel and Dispersion: Don't just chase the one longest shot. Look for the shaft that gives you the tightest grouping of shots. Which shaft produced the most consistent flight? Which one felt the best - like a natural extension of your swing rather than something you had to fight? More often than not, the answer won’t be the shaft that produced the single longest drive, but the one that kept you in play most often with the best feel.

Common Questions About Regular Plus Shafts

Will a Regular Plus shaft give me more distance?

It can, but indirectly. Distance comes from optimizing launch and spin. If your Regular shaft is causing too much spin (ballooning) or your Stiff shaft is launching too low with not enough spin, then finding the better fit with an R+ can absolutely unlock more efficient distance. It's about turning your swing speed into optimal ball speed and carry.

Can I just "tip" a Regular shaft to make it firmer?

Tipping a shaft (trimming from the tip end before installation) does make it play stiffer. However, it's a bit of a crude adjustment. Premium shafts designed as "Regular Plus" or "Firm" from the beginning have a specific bend profile manufactured into them. Tipping a Regular shaft can get you closer, but getting a shaft designed for your target profile will almost always yield better, more consistent results.

Final Thoughts

The Regular Plus golf shaft isn’t magic, but it fills a very real and significant performance gap for countless golfers. It acknowledges that players don’t fit neatly into perfect boxes, offering a “just right” option for those caught between the two most common flexes. By understanding your swing speed and your tendencies, you can determine if this is the change you need to unlock more consistent and powerful ball-striking.

Figuring out your unique swing characteristics and shot patterns often involves a lot of trial and error, but modern tools are making it simpler to get data-driven answers about your game. For example, by using a tool like Caddie AI, we help you analyze your tendencies and identify what your ball flight is truly telling you - like whether your miss patterns point toward a shaft that’s not quite right for your move. The goal is to get you out of the guesswork and provide personalized insights that lead to smarter decisions about your game and your equipment.