burying fingers

Which layout is right for me?

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kevin
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burying fingers

Post by kevin »

I am new to this. People have been concerned with burying finger holes into the core. Should they be?
I have been doing this to keep ball legal for double thumbs, p3, and p4.
Try to keep under 3 1/2 inches.
My answer has been don't be old school if you're happy with performance why be concerned plus Mo just about promotes it. Am I wrong?
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MathIsTruth
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Re: burying fingers

Post by MathIsTruth »

kevin wrote:I am new to this. People have been concerned with burying finger holes into the core. Should they be?
I have been doing this to keep ball legal for double thumbs, p3, and p4.
Try to keep under 3 1/2 inches.
My answer has been don't be old school if you're happy with performance why be concerned plus Mo just about promotes it. Am I wrong?
I believe you are correct. The following link is to a study on the wiki that I did about the effects on the mass properties of a ball when drilling finger holes deeper. You will see that little changes occur when the fingers are drilled deeper to allow for the use of P3 and P4 balance holes. Hope this helps...

http://wiki.bowlingchat.net/wiki/index. ... les_Deeper" onclick="window.open(this.href);return false;
kevin
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Re: burying fingers

Post by kevin »

OK so these slight differences in numbers means burying the fingers doesn't effect the ball much, and the benefits of p3, p4, double thumbs supersedes these slight differences in total differential. Which I think is the same as what Mo says about static weight not effecting the ball as much as the balance hole along the gradient line. Or does the fact that the differential ratio increases mean it's actually better for the ball.
Also I noticed you used 1.25 balance hole. I thought you couldn't go bigger than 1.125. Am I wrong or was this just to make math easier? I'm also assuming smaller balance hole would give same results.
Thank you very much for your answer and for the work you have put into this.
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Dustin
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Re: burying fingers

Post by Dustin »

kevin wrote:OK so these slight differences in numbers means burying the fingers doesn't effect the ball much, and the benefits of p3, p4, double thumbs supersedes these slight differences in total differential. Which I think is the same as what Mo says about static weight not effecting the ball as much as the balance hole along the gradient line. Or does the fact that the differential ratio increases mean it's actually better for the ball.
Also I noticed you used 1.25 balance hole. I thought you couldn't go bigger than 1.125. Am I wrong or was this just to make math easier? I'm also assuming smaller balance hole would give same results.
Thank you very much for your answer and for the work you have put into this.
Here is a link for the hole size http://wiki.bowlingchat.net/wiki/images ... manual.pdf go to page 1-3. As for the smaller balance hole the effects would not be as great as 1 1/4 but still effective. Start small & you can always make bigger to get the reaction you are looking for.
As for benefits of P3 or 4 are greater than drilling finger holes to China.(Hope that made sense, it did in my head, i think :? )
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kevin
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Re: burying fingers

Post by kevin »

Thank you. I stand corrected. I haven't had to go 1 1/4", but now I'm curious and will have to try it out. Should of known better than to question, but I did learn more out of it.
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Dustin
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Re: burying fingers

Post by Dustin »

kevin wrote:Thank you. I stand corrected. I haven't had to go 1 1/4", but now I'm curious and will have to try it out. Should of known better than to question, but I did learn more out of it.

The best way to learn is to ask questions. I beleave they didn't change the balance hole size untill the last year or so but don't quote me on that.
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Mo Pinel
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Re: burying fingers

Post by Mo Pinel »

kevin wrote:Thank you. I stand corrected. I haven't had to go 1 1/4", but now I'm curious and will have to try it out. Should of known better than to question, but I did learn more out of it.
Just do your research and don't be afraid to ask the lingering questions. Believe what MathIsTruth writes. He's the expert that I rely on for CAD data.
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Re: burying fingers

Post by laddog54 »

I just had this done by my Pro Shop Guy Bryan Viator. Wanted to put a P3 hole in my Pearl Cell. Ball works great for my brother but I wasn't quite getting the pop out of it I wanted. Had to drill the finger holes to 3 1/2 to take out enough finger weight to put in the P3 hole.Ball rolls great and there are no issues with the deep finger holes.
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Mo Pinel
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Re: burying fingers

Post by Mo Pinel »

laddog54 wrote:I just had this done by my Pro Shop Guy Bryan Viator. Wanted to put a P3 hole in my Pearl Cell. Ball works great for my brother but I wasn't quite getting the pop out of it I wanted. Had to drill the finger holes to 3 1/2 to take out enough finger weight to put in the P3 hole.Ball rolls great and there are no issues with the deep finger holes.

Say "Hi" to Brian for me.
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laddog54
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Axis Rotation: 45
Heavy Oil Ball: Cell
Medium Oil Ball: Grand Illusion
Light Oil Ball: Grenade, AMF Orbit Extreme
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Location: Houston TX

Re: burying fingers

Post by laddog54 »

Mo Pinel wrote:
Say "Hi" to Brian for me.
Will do. Mention you and this site to him when he asked about changes I have made to my game. He said that doing what Mo suggest is a good thing.
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