• 70, Male
  • Grafton, MA
  • United States
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Profile Information

About Me:
PBA member 11 yrs.
City and State:
How long have you been bowling?
51 years
golf, video gaming
my parents and my brother
How many 300's and 800's have you bowled? (If none what's your highest)
9 and 2
Current Bowling Average
Bowling Accomplishments: (tournament wins, league champions, etc...)
1'st Mass State Team Scratch (2002) 1'st State Dbls Scracth (04)3x County Team Champ;2x County Dbls Champ; County All events champ (05)

SenorRotoGrip's Blog

Nomad Dagger Review

Posted on December 7, 2010 at 8:02am 0 Comments

I drilled this ball with the pin and cg stacked under my ring finger with no extra hole. The pin on this ball was approx 3" which put the Cg just above my thumb. To compensate for the additional thumb weight this created, I drilled the fingers deeper to get the thumb weight to zero.

I used this layout to give me a skid/flip reaction for use on shorter oil patterns and on house shots as they break down. My Theory is drilled in a similar manner. Recently in league, my Theory was too…

Theory Ball Review

Posted on November 24, 2010 at 10:18am 0 Comments

I drilled the Theory using a 4 1/2", 75 degree pin/pap layout, MB 4 1/2" from pap, pin below my ringer finger, small rev leverage hole 2 1/2" below my pap on VAL.
On a PBA experience league Shark pattern (44'), the Theory revved up nicely in the mid-lane and had a strong, controlled move off the break point, with strong roll through the pins. On a PBA experience league Scorpion (41') pattern, the Theory showed the same…

Mutant Cell Pearl Review

Posted on June 29, 2010 at 8:30am 0 Comments

I drilled the Mutant Pearl with the pin above my fingers, 4 3/4" from my axis, cg out (enough to drill weight hole), MB 1 1/2" right of thumb, 1 1/8" weight hole on my VAL, 2" down from my axis (4 7/8>up 13/16). The Pearl gets down the lane about 2' longer than my Mutant solid on a fresh house shot. The reaction off the dry is a very smooth,arcing motion through the pins. The Pearl hits hard, like all the Cell balls, with strong continuation…

Roto Grip Grenade Review

Posted on June 13, 2010 at 10:44am 0 Comments

Using the core found in the Riot and Dark Star, Roto Grip has wrapped a urethane, 2000 grit abralon finish, coverstock (retrothane), around the core to give this ball the same Rg and Differential as the Dark Star and Riot. As the newer, stronger covers, tend to burn up lane conditions faster than in the "old" urethane days, urethane is making a return. From the novice to the advanced bowler, a urethane cover will provide a more controlled ball reaction on light to drier…

Dark Star Review

Posted on April 3, 2010 at 11:01am 0 Comments

Combining the Ultimate Vision pearl coverstock (1500 polished) with a new medium core (2.58) and medium differential (.40), Roto Grip introduces the Dark Star to its mid priced line. With a slightly stronger Rg than the Planet series, the Dark Star is a ball for medium to drier patterns. For PBA patterns, with proper layout, a stroker/tweener will find the Dark Star to be a good "go to ball" on the 37' Viper and 35' Cheetah as the pattern breaks down.

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