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Roto Grip Berserk Reviewed By: John Brodersen 08/31/2012 13:55 ( stars)

About the Bowler
Bowling Hand    Right Handed
Ball Speed    Medium
Style    Tweener
PAP    5 1/4 Over
Ball specs – 15 lbs 3 oz, 3.03top weight, and 3 1/4-inch pin.

Using the dual angle method, the Berserk was drilled with a 4 1/2 inch pin distance, 60 degree drill angle and a 30 degree VAL angle. Using Storm’s drilling methodology the layout is 4 ½ X 4 3/4 X 2 1/8 pin buffer. An X-hole was needed and placed in the P 2.5 position. The surface was left OOB which is 4000 abralon.

The Berserk is the replacement for the Dagger, which is one of my favorites. The first difference you will notice is that the HP3 line hybrid Berserk is dull and the Dagger was 1500 polished. I threw the Berserk on a broken down 41 foot, 24 micro-liter house shot. I ended up having to target at 22, the same place as the Defiant Edge I was throwing. The dull cover on the Berserk provided too strong a mid-lane read and the ball labored on the back end. I then added a coat of Storm Reacta-Shine to the cover. The polished created a little extra skid and length and got the ball to hit better on the backend. After the cover stock change the Berserk was striking a lot carrying many off hits. It may have something to do with the color scheme but the Berserk seemed to have a very heavy roll which reminded me of the old Roto-Grip Rush. With the motion the Berserk provides I feel I’ll be rolling it a lot on medium to light-heavy conditions.

The Berserk provides a lot of hook potential for a ball in the HP3 line. After I added some polish to the Berserk I was playing the lanes the same as I was with the new Defiant Edge. The difference in the ball motion between the Berserk and the Defiant Edge is the Berserk was slightly earlier in the mid-lane and smoother off the friction on the backend. The Defiant Edge provided just a little more length with a more pronounced move off the backend friction. Overall hook between the Berserk and the Defiant Edge was very similar.

John Brodersen
RG amateur staff

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