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Author Topic: Kicking the CG out  (Read 7992 times)

jdhaze

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Kicking the CG out
« on: January 26, 2007, 06:24:19 AM »
On Sym balls you often hear people say they kicked the CG out, in general how does that effect the reaction?  Also if you kick the CG in, what would that do?

thanks

JD

 

leftehh- LG

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Re: Kicking the CG out
« Reply #16 on: January 28, 2007, 08:28:30 PM »
we are not talking about balance holes we are talking about diff cg placements with no hole.
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MegaMav

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Re: Kicking the CG out
« Reply #17 on: January 28, 2007, 09:06:33 PM »
quote:
Based on my personal experience, I'd have to disagree with the statement that "1/2oz, 3/4oz, or whatever partial ounce is left has no discernable effect."

I had a ball (AMF Velocity) that would not make the turn for me.  Made a trip to a pro shop located in an AMF center to have them look at the ball.  After watching me throw the ball 4-5 times, he also threw the ball.  He took the ball back to the shop and weighed it out.  He found that it had a full ounce of positive side weight (legal according to USBC rules).  

He went ahead and drilled the weight hole bigger and took the ball to somewhere around 1/2 ounce of positive side weight.  After that, the ball reacted great.  So, maybe that 1/2 ounce doesn't make much of a difference to you, but it transformed my ball from a straight arrow to a nice little hook monster.

As far as I understand it, balls have top/bottom weight, side weight(positive and negative), and finger/thumb weight.  After watching BrunsNick's x-hole video again, I'd be interested to know the static weights of each of the holes.  That might make it easier (for me at least!) to understand the relation of reaction due to thumb and finger weight.


by drilling the x-hole deeper, he probably took some core out with it, thus changing the dynamics of the bowling ball, static weight still has no bearing on ball reaction.

Greg T

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Re: Kicking the CG out
« Reply #18 on: January 28, 2007, 09:21:13 PM »
quote:


by drilling the x-hole deeper, he probably took some core out with it, thus changing the dynamics of the bowling ball, static weight still has no bearing on ball reaction.


   You can keep believing that if you wish. I'll keep laying out and drilling my equipment in the same manner I do now. Finishing weights work for me and everyone else I drill for.




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qstick777

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Re: Kicking the CG out
« Reply #19 on: January 28, 2007, 09:57:18 PM »
quote:


by drilling the x-hole deeper, he probably took some core out with it, thus changing the dynamics of the bowling ball, static weight still has no bearing on ball reaction.


Actually, the x-hole didn't touch the core at all.  I no longer have the ball, but I believe he actually drilled the hole wider and not deeper.  The only thing he did was remove some side weight and it made a world of difference on that ball.


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Greg T

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Re: Kicking the CG out
« Reply #20 on: January 28, 2007, 09:59:24 PM »
quote:
quote:


by drilling the x-hole deeper, he probably took some core out with it, thus changing the dynamics of the bowling ball, static weight still has no bearing on ball reaction.


Actually, the x-hole didn't touch the core at all.  I no longer have the ball, but I believe he actually drilled the hole wider and not deeper.  The only thing he did was remove some side weight and it made a world of difference on that ball.


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   Removing side weight will make the ball roll sooner and read the lane a bit earlier.





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