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Author Topic: Roto Grip Clone  (Read 7101 times)


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Roto Grip Clone
« on: August 19, 2023, 07:25:19 PM »
Roto Grip’s newest HP4 line ball has a little bit of a different twist on it. The Cloned ET core which features an RG of 2.51, differential of 0.056 and PSA of 0.016, has the new Optitrax Solid cover but this solid is polished with Reacta Gloss. I drilled mine 5.5 x 5 x 5 and after throwing this ball for awhile I was completely surprised by that reaction of it. The Cloned ET core is an upgrade of the ET Core that was found on the UFO and UFO Alert. I thought with that happening the ball will be a little blend between those two balls but to my shock it reminds me of a weaker version of my DNA which I also have Reacta Gloss on. I think the Clone is going to be a house shot killer for any style of bowler and I think tournament bowlers will enjoy the versatilely of having it shinny or taking some surface too it.


Michael Slatky

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Re: Roto Grip Clone
« Reply #1 on: August 24, 2023, 04:52:31 PM »
Roto Grip
Coverstock: OptiTrax Solid Reactive
Finish: Reacta Gloss
Core: Cloned E.T. Core
(14 pd)
RG: 2.53
Differential: 0.056
Int Diff: 0.016

Layout: 5 x 5 x 4 2LS
Tester:  PAP 6 1/2 R, 1 1/4 D

The Roto Grip Clone is not simply a substitute for the UFO Alert, but rather a beefier redesign. The Clone offers options to handle heavier volumes of oil, more options for various weights and a coverstock that generates a touch more length then your traditional solids. In addition, the Clone provides enough variation in the HP4 line to be part of any arsenal.

The coverstock of the Clone along with the updated core compared to my Exotic Gem allows for more length through the front part of the lane. Both of these balls have been a pleasant surprise regarding control.  The Clone is more angular and will allow you to open the lane up more for a big asym ball compared to the Exotic Gem.

The OOB finish worked well on two older HPL surfaces where the THS shot is oiled at 42' and 43' feet.  Initially, I thought I may need to surface with a 1K or 2K pad. For now, I'm leaving the surface as-is. In addition, I have an opportunity to attend some SPI demo days where I want evaluate the Clone in more detail.

As indicated above your Clone will work best on longer and higher volume patterns.  Do not hesitate to try out the Roto Grip Clone today!

Michael Slatky
900 Global Staff Member
York, PA


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Re: Roto Grip Clone
« Reply #2 on: August 25, 2023, 10:06:46 AM »
Roto Grip Clone: Cloned ET core with Optitrax solid reactive cover.

Layout: 50 x 3 ½ x 35: finished with Storm Reacta Gloss.

With the recent change in my game and health, for the better, I wanted a good and strong solid reactive mid-length with little less flare than the other 3 new balls I had drilled. We went with the above layout. The initial few throws were stronger and heavier through the pocket than my Exotic Gem, I needed to open up and swing it a little more and open up the pattern and lane. After practicing for 30-35 minutes with the Clone, I became comfortable with the strong roll and blistering through the pins. My friend and 900 Global staff member could not believe how well the Clone rolled and reacted for me. The Exotic Gem is not as strong as the Clone for me, and I feel it rolled and performed better than the OG UFO and UFO Alert. Used the Clone and Tour Dynam-X exclusively since getting these balls in my hands. If you need that new medium to heavy “oil” ball the Clone is out of this WORLD and should be used by every smart league and tournament bowler.

Visit, and check out the latest balls from 900 Global, Roto Grip and Storm bowling balls, bags, accessories, and gear.


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Re: Roto Grip Clone
« Reply #3 on: August 26, 2023, 12:40:41 PM »
The Roto Grip Clone has a low RG value of 2.51 a high differential of 0.056 and a high intermediate differential of 0.016.
Roto Grip came out with a brand new cover/core combination of the Optitrax cover and E.T.â„¢ Core (Equalizer Technology Core).  To bring this all together the Clone will give you something that you can get deep inside and blend out the wet/dry lane conditions.
The Optitrax cover which has been derived from years of testing and research to provide a more balanced oil displacement/absorption throughout the entire lane thus creating more consistency/predictability shot after shot in terms of skid distance, midlane traction, and response to friction down lane. Derived from the advancements of both the eTraxâ„¢ and eTraxâ„¢ PLUS solid materials the last couple years, we found this new direction of solid material that complements both of those without overlapping them.
The proven E.T.™ Core (Equalizer Technology Core) as seen in the UFO series, to be a complement all of our other asymmetrical cores. By simply changing the density of this single piece part, it not only lowered the RG values of the 16lbs – 14lbs options, it also, increased the Differential values in those parts as well, thus increasing the overall motion potential.
In comparison to the Roto Grip Gem, the Clone will be a cleaner option to be used on the fresh that will be a step down from the Gem but to be used in that heavy oil place in the bag especially on the older lane panels. In addition, the Clone will be a pliable and very versatile coverstock that will take kindly to surface adjustments.
In the bag, will be the Clone, Summit, Xponent, Zen Gold Label and Hustle RIP.
Please pick up a Roro Grip Clone at a Striking Results Proshop near you and please like and subscribe to my page Beyond the Arrows Ball reviews. Use my coupon code Patrick300 on your first purchase of a Bowlifi jersey and get $5.00 off.


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Re: Roto Grip Clone
« Reply #4 on: August 27, 2023, 07:54:32 PM »
Roto Grip Clone ball review
VLS 4 1/2 X 4 1/2 X 1 7/8
The Clone is another ball that gives me a shape different than anything in my bag right now. As I was a big fan of the E.T. Core, getting a new piece using a revised version of it was something to look forward to. Combined with the Optitrax solid cover with a Reacta gloss finish and you have a great new addition to any arsenal.

This ball is plenty clean through the front of the lane thanks to the Reacta Gloss. It really shines (no pun intended) in the midlane. The Clone really picks up for me there and makes a really strong move, even on heavier oil. The ball is pretty forward on the back of the lane, making it very controllable. If you play more up the lane like me, this will really make this ball usable on a variety of conditions. It gives me a good angle to carry while not going sideways if I miss a little. Whenever I used it so far I have seen some big scores. I also find it easy to read the lanes with it as it makes that very defined reaction in the midlane.

With the Reacta Gloss finish, this ball is much cleaner and sharper than any other solid covers I have right now. It's a little less overall than my Summit, but stronger than my go to pearl which is the Eternity usually.

This ball should be a great addition for fresh oil, or when you need something strong but not too early. If you were a fan of the UFO Alert, you will definitely want one soon.

Dave Adams
Storm staff

Rick K

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Re: Roto Grip Clone
« Reply #5 on: August 28, 2023, 11:05:56 AM »
Clone • Roto Grip • HP4 Series
Core • Cloned ET (Asymmetric)
Coverstock • Optitrax Solid Finish • Reacta Gloss
Weight • 15 lbs. RG • 2.51 Differential • .056 Intermediate Diff• .016
Layout • 4 x 4 ¼ x 1¾
Tester PAP • 5” R, 5/8” D Tester Axis Tilt • 11° Tester Rev Rate • 300
Test Pattern • 42' THS (Typical House Shot) • Modified, Kegel Stone Street

Roto Grip brings its proven winning technology back to life with the release of the Clone. Built with the "Cloned" ET (Equalizer Technology) Core and Optitrax Solid Reactive Coverstock, the Clone takes its predecessor's success to a whole new level of pin-crushing results and is the next-generation powerhouse. So, let's get into what makes the Clone a must-have for your arsenal.

The heart of the Roto Grip Clone is the Cloned ET Core. And we can talk about the design and all the technological jargon. But let me put it into terms we can all understand. The Cloned ET core is a smooth rolling powerhouse ready to unleash its wrath on anything that gets in its way, period! Further, I liked how the Cloned ET core revs in the mid-lane for a strong Asymmetric Core without being lazy. And it generates plenty of that stand-up and delivers power when the Clone exits the pattern. And when the Cloned ET gets into its roll phase – watch out! The Cloned ET Core has relentless power as it explodes at the pocket and steamrolls through the pin deck. So, if you are a straighter player like me, you can count on the Cloned ET Core to deliver when you need it most.

The Optitrax Solid Coverstock worked OK for me with the Reacta Gloss box finish. But because of my low rev rate and down and in style, I needed more bite and a smoother transition that Reacta Gloss finish provided. So, I sanded the Optitrax Solid with 1500-grit Abralon, and the results were excellent. On a THS, I liked how the Optitrax skates in the front part of the lane and gently bites in the mid-lane, providing a smooth and predictable motion I could count on. Whether early on fresh conditions when I am playing straight up second arrow or later in game three when I need to open my angles, I could rely on the Optitrax Solid to deliver a clean and brisk transition off the pattern without worrying about the Clone jumping when it finds friction. So, if you are a down-and-in player like me, the Optitrax Solid will perform nicely for you with the correct surface adjustment to fit your game.

So, in conclusion, the Roto Grip Clone goes beyond where its predecessor left off and is an excellent new release. Although it may be "Cloned," I found the Clone to be the next generation that stands on its individual merit and is a powerful weapon to fit your arsenal. So, if you are a down-and-in player who relies on the strong angular back-end motion to deliver results, stop by your local Storm VIP Pro Shop today and have your Clone ready for action when your league play begins! You will love the results!

Rick Klimowicz
Storm Products Pro Shop Staff
Roll the Ball Pro Shop
Penndel, PA