Roto Grip Rumble Bowling Ball

Rotogrip Rumble PAP-5 over and ½ up Ball Speed: 15-17mph Rev Rate: 300-500 Right Handed Layout: Basic pin up with ½ side weight Surface Preparation: OTB What I wanted from this ball: Late roll with a strong continuation to the pocket Result: Exactly what I wanted. Being a huge fan of the wrecker, I wanted this ball to stronger with a more violent backend reaction. This is exactly what I got from this ball. I didn’t alter the surface at all and went with a strong drill pattern for me. I did not put a weight hole in this ball, but did put about ½ ounce side weight to help it move. I tested this ball on our home wood lanes with our house pattern. Our house pattern is a tough shot with dry heads in the middle portion of the lanes from 10-10 and a huge early backend and a hold area from 10-5 with a massive out of bounds 5 and out. I bowled 3 games keeping this ball around the 10 board and scored great. I managed to get great length and a hard continuing backend reaction towards the pocket. The carry was awesome and this ball carried both light and heavy pocket hits for me. The second set of games, I moved deeper inside playing around the 15 board and swinging the ball out to 8 board. Keep in mind that our house patter has an out of bounds past the 5 board. The rumble did exactly as I expected it to do. I was able to get great length throughout the dry portion of our lanes and still get a great snap to the pocket. I did hang some corner pins, but that is expected with our pattern due to the massive backend in the middle portions of our lanes. I was able to get this ball a bit wide and still have recovery to the pocket as well. Compared to the wrecker, this ball is much more controllable and forgiving. Pro shop reaction: I cannot keep this ball in stock. As soon as I put one on display, it sells within two to three days! This ball has a fantastic look as well. All of my rumble customers agree that this ball is much stronger than they expected. Recommendations: I would recommend this ball for any bowler ranging from beginner to advanced bowlers. The rumble would be a great benchmark ball to start out with. Storm-Roto Grip Staff Sean Baker Bowl Like a Pro Shop Paducah, Ky 42001

Rumble Sleeper...WOW, I was extremely surprised, this ball is now the first ball out of my bag on house shots. I use to take the Disturbed out first, but since drilling my Rumbles it's now the first ball out. The Disturbed on some house shots was to strong, but the Rumble is AWESOME. I used the Rumble (box finish) on a house shot playing up the boards, crossing 10th board out to the 5th board with the ball floating through the fronts with a continuous strong arc on the backend. The Rumble really drives through the pins. I could use the Rumble all day, the house shot never got to dry for me. As long as I had some oil in the fronts I could keep moving left and the Rumble stayed in play. I used it on some sport patterns, I struggled with it on the heavier patterns, but the lighter sport patterns it looked like a champ... I really like it on the lighter patterns. This ball would be a great fit for most every league bowlers on most house shots. On the lighter sport patterns it would be a great addition to most every bowler.

Hand: Left Ball Speed: 16-17mph Ball Weight: 15lbs PAP: 5 left 7/16 up Degrees of Tilt: 17 Layout: 4 ½ x 4 ½ x 3 ½ The Rumble is a great edition to the Roto Grip mid to low performance line up. With the solid cover stock and the new Late Roll 51 weight block it is the smoothest reaction ball in the HP2 line up. The Rumble has the pin drilled into the ring finger with the cg in and no hole. I am able to play straight up the boards which I usually cannot do with a solid but with it being a weaker (but still strong) solid than all the other solid balls I have it is very versatile, predictable and a smooth back end motion. Once the lanes open up and the outside line is starting to dry up and the Rumble starts to jump I am able to move more right to my A game and does not over read but keeps a good line until it gets to the back end and makes a smooth turn with a lot of power for a mid to low end solid. The Rumble is a great ball for someone who wants something smooth but not super strong at a lower price. If you have any questions about the rumble email me at garrett.richardson@pinolebowlerssupply.com Garrett Richardson Storm/Roto Grip Amateur Staff Vise Inserts Amateur Staff Pinole Bowler’s Supply www.facebook.com/grstorm www.facebook.com/pinolebowlerssupply www.stormbowling.com www.rotogrip.com www.viseinserts.com

The layout selection used was based on the Storm VLS system and suggestions made by Mr. Steve Kloempken of Storm. My thanks to Mr. Kloempken for his suggestions, time and knowledge. Ball specs – 15 lbs 2 oz, 2.75top weight, and 3.5-inch pin. The Rumble was drilled with a low RG layout as follows; using Dual Angle terminology - 2 inch pin distance, 60 degree drill angle and a 40 degree VAL angle. Using Storm’s drilling methodology the layout is 2 X 5.5 X .75 pin buffer. An X-hole was needed and placed in the P2.5 location. The surface was left OOB which is 2000 dull. The Rumble is the latest symmetrical, solid in the HP2 line. I initially threw the Rumble on the USBC White #2 pattern. What surprised me the most was the length down the lane the Rumble provided. With the cover at 2000 I was expecting an earlier read. The chosen layout combined with a .030 differential and mild cover provided a smooth and predictable motion on the back end. The flare rings were fairly tight. I would rate hit and carry as above average. The Rumble is definitely more of control ball when compared to the big backend of the Wrecker (hybrid) and Shatter (pearl) in the HP2 line. With the selected layout, the Rumble will allow me to play with more closed angles and closer to the friction on fresh medium and perhaps fresh medium-light conditions. Unless you have a lot hand the Rumble will need to see some friction to get it going. John Brodersen RG amateur staff

The Roto Grip Rumble is HP-2 line along with the Shatter and the Wrecker. The Rumble is a Solid cover stock that complements the Shatter which is a pearl cover stock and Wrecker which is a Hybrid cover stock. The Rumble does not have the skid flip motion of the Shatter or the Wrecker but it does have decent length and a very continuous backend motion. The Layout that I used for the Rumble is 45 X 5 ½ X 45 with an X hole 7 inches from the center of my grip or the Pin Above the fingers with a 7 inch hole. My PAP is 5 5/8 over and ¾ up, rev rate around 300, ball speed around 15MPH and I am right handed. For my review I threw the Rumble and the Shatter and compared the differences. Both balls have similar layouts (Pin over the fingers with an x hole) and I kept them at box finish so with the Rumble being at 2000 and dull and the Shatter at 1500 and Polished there was a noticeable difference in length. The Rumble rolled earlier and more continuous were as the Shatter was a more Skid Flip ball motion. On the Typical House Pattern were I was throwing the two balls, I was farther left with my feet and my target line was also a little farther left with the Rumble compared to the Shatter. The reason is the Rumble at box surface needs some oil in the front part of the lane in order to store energy for the best results. I decided to polish the Rumble and see what would happen. The polished Rumble did skid more through the front part of the lane and more energy for the break point. However, the continuous ball motion was still there compared to the Skid Flipping ball motion of the Shatter. I also used the Rumble on various tournament conditions and was surprised by the versatility. The Rumble is a solid ball that gives you enough length and backend motion to use when the pattern is “tricky” or transitioning. My best results have been later in the block (games 3 to 4) especially on medium length patterns with medium volume. What I have noticed is that for me it is a good in between ball. When the Disturbed or IQ solid is too much ball but a pearl cover is too jumpy… That is where the Rumble fits for me. The Rumble provides that consistent but strong ball motion. The Rumble will always be in my bag when I going to a tournament. Dan Schaden Jr Storm/ Roto Grip Staff Vise Grip Staff

Rumble PAP - 4 3/16 over 1/4 up Ball Speed 17-18 mph Rev Rate 300-350 Right Handed Layout 39 x 1.625 x 39 Surface Preparation: OOB What I was looking for: I was looking for something to replace one of my all time favorite balls the shooting star. What I got: Wow this fills its Blue/White big brother’s Shoes. Hooks every bit as much if not more than the wrecker. It does so in a little bit earlier and smoother motion. I got exactly what I wanted. I regret not stocking up on a bunch of Shooting Stars with how well it matched up with me. Now they pretty much recreated it, but even BETTER! The little bit lower differential core means it is even MORE controllable. This ball is incredibly versatile and can be thrown on literally almost any pattern. Hooks enough in oil and is still controllable when there isn’t much. Somebody give me a case of these. This ball hooks a lot for the price range and is just great I can’t wait for my fall leagues to start with this ball. Steven Fagan Storm Pro Shop Staff Lexington, KY

I tested the RUMBLE on 40 ft. THS, at 2000 grit abralon box finish. I was surprised at how well this ball got through the heads. It’s very smooth down lane and makes a nice even, although strong, turn to the pocket. It has a very strong even motion overall. Very hard hitting, continuing right through the pin deck. This ball is a great complement to the WRECKER. I have been starting with the RUMBLE, and when the heads start to burn and I need more length, I can pull out the WRECKER. I find the RUMBLE and the WRECKER make a good One Two punch for me on our house pattern. A great addition to any arsenal!