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DeMarini CF XD Fastpitch Bat Review | Adjustable Length

By Bat Digest | Last Updated June 15, 2022

Why not just choke up?

We have a hard time combating this (not that we need to, its not like we are trying to sell you the CF-XD. Instead, we are simply trying to help buyers see the justification if they want).

But, those willing to buy choke rings might be asked the same question. Why not just choke up?

Because, simply enough, it just doesn’t feel the same. The knob’s feel up against the bottom hand gives a different feel than choking up. It is why there is a knob at the end of the bat and it doesn’t slide off at the same diameter. And, for younger players, we can see how familiarity in the feel of the hands, with a knob on the bottom of the hand, could be better than simply ‘choking up’.

Is that worth $30 to you? Maybe.

Price Check

2019 CF CD Video

2019 CF CD Video

2019 CF CD Models

We hit with the 2019 CF-XD from DeMarini’s fast pitch line. The bat felt great as it is the fastpitch 2019 CF Zen in a drop 10–which is a top of the class bat. Monster barrel, great performance and, to some at least, a perfect feel on impact. The adjustable length knob felt natural and adjusted on the fly. Here is our 2019 DeMarini CF-XD Review.

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General Recomendations

As we mention above, those looking for a high-end two-piece composite fastpitch bat (like the CF Zen or Slugger LXT) should take a look at the CF-XD. Especially, those considering choke-up rings or who are not quite sure the exact length to buy are prime candidates for this gadgetry.

On the whole, gadgetry in the bat space has not been well received.  It has taken Axe bats a number of years to get some legitimacy and many still sneer at its odd-shaped handle. The Mako Torq’s spinning handle fizzled. Mizuno’s soft-barreled MAXCOR is still on the outs. And remember when RIP-IT filled a bat with Helium? And the Easton Lock & Load (and adjustable swing weight bat) lasted about one season.

Our experience with the adjustable length was intuitive. It did have a set of instructions but we never looked at them. The idea of a spin, slight pull, spin back and then a set was a pretty natural approach. We have no doubt that those with the bat will be able to adjust the length in the batter’s box in a moment’s notice.

Despite the ease of use, the idea of a handle whose knob adjusts will be met with derision, no doubt. Why not just choke up? they’ll say. Why not just buy one of those choke rings for a few dollars? Fair enough and reasonable responses.

Model Recommendations

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Comparable Bats

Do note, as the point where the bat pivots (or spins around) changes then so does the swing weight of the bat. In other words, as the knob and pivot point moves up towards the end cap then the bat becomes easier to swing. An easier swing is, in fact, why people choke up.

The math works out that each 1/2 inch move closer to the end cap the bat swings 5% lighter.

As a reference, the 31/22 “Drop 10” CF-XD swings, in terms of balance, much like the 31/21 CF Zen.

Previous Models

Why not just use choke rings instead? For some, that might be the right answer.

But, consider this.

The adjustable CF-XD is all of $30 more than the CF Zen in fastpitch. Choke rings aren’t free. Granted, you can pick up two of those for $15. Two is what you’d need to give you the flexibility in sizing the CF-XD gives you. But, if your alternative route is to get some choke rings then buying a CF-XD is $15 more expensive. For at least some, $15 is a imperceptible amount when you are already spending $350.

Is $15 worth the the fact that 1) choke rings won’t be lost and 2) you can adjust them on the fly? Possibly. For those who are looking into a CF Zen in fastpitch in a drop 10 with a couple choke rings to extend the useful life of a bat for a growing player, then a CF-XD might make perfect sense.


Aside from the remarkable change in the handle, the bat is exactly like the Drop 10 2019 CF Zen in fastpitch. Expect a long barrel, great balance and top end performance from the 2019 CF-XD. See our full review of the 2018 CFX in fastpitch to get the best sense of where the bat will fit in 2019.

Overall Ratings

The overall rating uses seven different weighted metrics to determine our overall score. Half of total rating comes from the player and our exit speed tests (Player Rating: 25%, Performance: 25%).The other categories are Relevance (20%), Demand (10%), Durability (10%), Resell Score (5%), and Tech Specs (5%).

*: When a bat is denoted by a star (*) it is a preliminary rating. Expect it to be updated as we learn more about the bat and gather more data.

(PlaRa) Player Rating: We measure player rating from user reviews. Those users include our own hitters that we test at the lab as well as reviews we find online.

(ExVe) Performance: Performance measures the exit speeds and distances we capture in our hitting lab with HitTrax using these bats.

(Relv) Relevance: We measure the number of sizes and the MOI of the bat. Bats with a wider range of options get a better score.

(Dmnd) Demand: Demand is measured by consumer sentiment and the buzz around the bat.

(Drb) Durability: A bat’s durability is measured by user reviews as well as feedback from manufacturers.

(ReSl) Resell Score: Based on the price the bats go for used. Higher prices mean greater user demand which means, generally, a better bat. A resell value closer to its original price means a higher score.

(Tech) Tech Specs: We rate the bat on its technological advancements from previous years and compared to the industry at large. This is our chance to reward companies who are trying to innovate.
MOI or Mass Moment of Inertia is a measurement of bat swing weight. This quantifies how difficult it is to swing a bat. The industry often refers to this as things like End Load or Balanced but those words have been overused to the point of meaninglessness. We measure the actual swing weights of each bat we test using the industry-standard pendulum period, balance point, and scale weight. You can read more about that here.
The price is the original MSRP price of the bat.
The types of bats are single-piece alloy (SPA), two-piece composite (TPC), single-piece composite (SPC), hybrid (Hyb.), and wood (Wood). Hybrid bats are made of composite handles and alloy barrles.
The estimated date the bat began distribution.

Download our data.