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2017 DeMarini CF9 Insane Review

Bat Digest score 79/100
Overall grade C+
Power B+ Control A Quality B Value B
May 31, 2026
Expert Tested
2017 DeMarini CF9 Insane Review
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Who should buy the 2017 DeMarini CF9 Insane?

If buying: Consider the 2017 DeMarini CF9 Insane if this matches your player: Baseball hitters who want a Fastpitch two-piece composite option in -10. Choose the exact certification and drop first, then use the score and model table on this page to compare the available versions.

2017 DeMarini CF9 Insane full bat view

Best for

  • Baseball hitters who want a Fastpitch two-piece composite option in -10.
  • Hitters choosing -10 drops in Fastpitch.
  • Players who already fit the listed Fastpitch version.

Skip if

  • You need a different certification, drop, or size than the listed model.
  • You want a new warranty-backed bat instead of shopping an older model.

Confidence: Published Review This uses Bat Digest catalog data, ratings data, and existing review notes; current availability, warranty coverage, and used-market condition may vary.

Is the 2017 DeMarini CF9 Insane a good bat?

The 2017 DeMarini CF9 Insane (Fastpitch) is a two piece composite bat reviewed by Bat Digest.

What should you know about the 2017 DeMarini CF9 Insane?

  • How good is the 2017 DeMarini CF9 Insane in our rankings: It is ranked 77 out of 103 in Fastpitch -10 bats.
  • Who is the 2017 DeMarini CF9 Insane for: Baseball hitters who want a Fastpitch two-piece composite option in -10.
  • Database rank: 2017 DeMarini CF9 Insane Fastpitch drop -10 is ranked #57 out of 100 in our Fastpitch database.
  • Construction: Two Piece Composite
  • Drop options: -10

What are the 2017 DeMarini CF9 Insane specs?

  • Year: 2017
  • Brand: DeMarini
  • Model Name: CF9 Insane
  • Drop: -10
  • Construction: Two Piece Composite
  • Original Price: Unknown

What evidence is this based on?

What we know

  • Available as Fastpitch, -10 drops, 32, 33 sizes.
  • Construction: Two Piece Composite.
  • The score module is generated from Bat Digest ratings data for the associated model set.

What we have not tested yet

  • Every used-market copy or later production batch.
  • Current seller pricing, warranty coverage, and availability.
  • Whether league rules or stamp requirements have changed since the original review period.
  • Variant, drop, size, price, and certification facts come from current Bat Digest catalog data.
  • Buyer-fit language is based on the existing Bat Digest review notes and watchouts in this file.
  • Scores and score ranges come from Bat Digest ratings data rather than static article copy.

What about durability and legality?

Legality: Fastpitch Confirm the Fastpitch stamp on the exact bat before game use.

  • For older composite bats, used-bat condition matters more than original marketing claims.
  • Used-bat condition can matter more than the original review grade.

What bats are comparable to the 2017 DeMarini CF9 Insane?

Inside the DeMarini line, the CF8 Insane is a near match to the 2017 CF9. If we were shopping for the bat, we'd price check the CF8 for sure. End loaded two piece composite bats in the faspitch bats aren't particularly plentiful. However, the Drop 9 XENO Plus from Slugger is likely the most obvious competitor to the CF9. It is a big hitting bat built for the big elite hitter. (Check out our review on the Louisville Slugger XENO Plus).
2017 Louisville Slugger LXT Hyper

2017 Louisville Slugger LXT Hyper

Overall: A (93/100) Rank #5/103

Closest same-lane comp: another Fastpitch two-piece composite to check for feel, value, and model fit.

2016 Louisville Slugger LXT Plus

2016 Louisville Slugger LXT Plus

Overall: A (93/100) Rank #5/103

Closest same-lane comp: another Fastpitch two-piece composite to check for feel, value, and model fit.

2018 Louisville Slugger LXT

2018 Louisville Slugger LXT

Overall: A (93/100) Rank #10/103

Closest same-lane comp: another Fastpitch two-piece composite to check for feel, value, and model fit.

2017 DeMarini CF9 Insane FAQ

Is the 2017 DeMarini CF9 Insane a good bat?
It makes the most sense for this player fit: Baseball hitters who want a Fastpitch two-piece composite option in -10. The score strip and model table are the quickest way to compare the listed variants.
Which 2017 DeMarini CF9 Insane model should I buy?
Start with the certification and drop your player actually needs. Do not use the grade from one certification as a guarantee for a different version.
What bats compare to the 2017 DeMarini CF9 Insane?
Start with 2017 Louisville Slugger LXT Hyper, 2016 Louisville Slugger LXT Plus, 2018 Louisville Slugger LXT; those are the closest useful cross-shops in this review set.

Video review

How does it rate?

Overall score is Bat Digest's 100-point rating. Prices and availability can move.

Model League Drop Overall score Power Control Quality Value Price Check price
2017 DeMarini CF9 Insane Fastpitch full bat view CF9 Insane WTDXCFI17 Fastpitch -10 79/100 C+ B+ A B B -

What is the quick review?

The 2017 DeMarini CF9 Insane brought end-loaded power to the fastpitch CF line with the same composite technology that dominated baseball. This two-piece design gave power hitters the mass they needed for maximum distance.

What models and sizes are available?

The CF9 Insane featured Paraflex Composite optimized for fastpitch with strategic end-loading. The D-Fusion 2.0 Handle reduced vibration while the loaded barrel delivered the pop stronger hitters demanded.

How is it built?

Like previous years, the CF9 Insane is an endloaded, two piece composite fastpitch bat. The D-Fusion 2.0 handle has a stiff transition, built for the stronger player with top end bat speed. In the CF fastpitch lineup, the bat is the heaviest loaded bat. It is a drop 9. (The drop, you will recall, is the numerical difference between the length of the bat in inches and the weight of the bat in ounces). DeMarini claims the new composite (they call it paraflex)  is "22% stronger" than in previous years. We would have no way to confirm this claim, but also no reason to doubt it. Considering the balance point on this CF9 Insane didn't change from the CF8 Insane, we don't see much value in an upgraded composite. From our research, we did not see any complaints on durability so, again, not sure if the 22% improvement in durability in the composite will be noticeable in the 2017 version.
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