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Author Topic: Asymmetrics Retaining Axis  (Read 7729 times)

2handedrook12

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Asymmetrics Retaining Axis
« on: September 12, 2015, 12:23:06 AM »
Just a general question here. The pin closer to 3 inches retains axis mmore than 4.5 inches from pap correct?
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Strapper_Squared

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Re: Asymmetrics Retaining Axis
« Reply #1 on: September 12, 2015, 08:56:30 AM »
Pin position controls flare.  On strong asymmetrical core balls, < 3" flares less than > 4".  Therefore, the < 3" layout (all others held constant) should flare less and retain axis rotation longer.
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BradleyInIrving

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Re: Asymmetrics Retaining Axis
« Reply #2 on: September 12, 2015, 03:32:30 PM »
What Strapper^2 said..

JustRico

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Re: Asymmetrics Retaining Axis
« Reply #3 on: September 12, 2015, 06:22:13 PM »
3.375" or 45 degrees from the pap is the highest flare potential...any deviation alters shape and flare potential
Asymmetrical core bowling balls tend lose rotational integrity quicker than symmetrical core
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JS

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Re: Asymmetrics Retaining Axis
« Reply #4 on: September 14, 2015, 12:07:06 PM »
What does all of this mean in terms of reaction on the lanes?  If you have 2 identical balls and all variables are the same except one has a 3" pin to pap and the other has a 4.5" pin to pap what would you see different in reaction? 

Being that the 3" pin would retain axis rotation longer would that in theory make the ball "go longer"?  What does retaining axis rotation mean in relation to ball reaction?

JustRico

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Re: Asymmetrics Retaining Axis
« Reply #5 on: September 14, 2015, 12:17:22 PM »
It would not retain axis rotation longer...3" is relatively close to 3.375" which is leverage which creates the highest potential for flare or instability in the core...
What enhances the ball to go longer is ball speed and surface prep...flare only effects if the ball slows properly
Surface dictates length and how & where the ball slows down...flare effects after that occurs...a leverage or 3.375" pin to pap is highest flare potential...4.5" is less plus a longer skid phase...
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JS

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Re: Asymmetrics Retaining Axis
« Reply #6 on: September 14, 2015, 01:40:27 PM »
Thanks Ric.  I don't mean to hijack this post but hopefully it will help others too.

As I get older my speed diminishes.  Right now I am 14mph at the pins (Quibica) with 300 rpms and 25+ degrees of axis tilt.  My pap is 4 1/4 over 3/8 up. 

I am forced to stand as far left as I can and play as deep as I can to keep my ball in the oil as long as I can.  I find that "weaker" balls will hook way too much for me in the back so I tend to drill a stronger ball with lots of polish and very weak pins, in the 5.5 pin to pap range.  While I can generally be in the pocket with this the ball doesn't seem to finish well enough playing this angle to consistently carry the 10.  I was just reading on BowlingChat that if using an asymmetrical with a pin in the 5 to 6" range that when it comes out of the pattern it is in a forward roll and this pin to pap distance is better suited for someone playing a more down and in type shot, not a deep angle.  It went on to say if you wanted to play a deeper angle then a pin to pap of 3" with a large drill angle would be the way to go.

This is what I'm trying to understand and why I was so interested in this post about pin placement and axis rotation, etc.  I was always under the impression that a 5 to 6" pin would allow for length (less flare) and a strong backend reaction?  That's what I'm trying to achieve.  Any thoughts Ric?

JustRico

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Re: Asymmetrics Retaining Axis
« Reply #7 on: September 14, 2015, 01:49:44 PM »
Pins as they deviate from leverage or 3.375" from pap lower flare potential and alter shape...closer to pap will create an earlier or slower response/reaction and one farther from the pap creates a later or faster response/reaction
If I was you I'd drill a cleaner weaker cover to allow for you to player smaller angles on the land use a pin farther from your pap prolly 5.25-5.5" and possibly put a weight hole down your Val to help slow the response angle
I do not believe all the voodoo surrounding dual angles...there are NO absolutes with layouts...surface will always control reaction...
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Perfect Approach Pro Shop

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Re: Asymmetrics Retaining Axis
« Reply #8 on: September 14, 2015, 03:36:16 PM »
Thanks Ric.  I don't mean to hijack this post but hopefully it will help others too.

As I get older my speed diminishes.  Right now I am 14mph at the pins (Quibica) with 300 rpms and 25+ degrees of axis tilt.  My pap is 4 1/4 over 3/8 up. 

I am forced to stand as far left as I can and play as deep as I can to keep my ball in the oil as long as I can.  I find that "weaker" balls will hook way too much for me in the back so I tend to drill a stronger ball with lots of polish and very weak pins, in the 5.5 pin to pap range.  While I can generally be in the pocket with this the ball doesn't seem to finish well enough playing this angle to consistently carry the 10.  I was just reading on BowlingChat that if using an asymmetrical with a pin in the 5 to 6" range that when it comes out of the pattern it is in a forward roll and this pin to pap distance is better suited for someone playing a more down and in type shot, not a deep angle.  It went on to say if you wanted to play a deeper angle then a pin to pap of 3" with a large drill angle would be the way to go.

This is what I'm trying to understand and why I was so interested in this post about pin placement and axis rotation, etc.  I was always under the impression that a 5 to 6" pin would allow for length (less flare) and a strong backend reaction?  That's what I'm trying to achieve.  Any thoughts Ric?

I have a customer here that has similar numbers and same issue. Likes to play track area but can't because everything that he wants to throw jumps. He gets in deeper and has trouble with corner pins. He has always been a Hammer person. Talked him into a Storm Ride and put pin 5" from pap for him. Pretty much only ball he throws now.
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JustRico

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Re: Asymmetrics Retaining Axis
« Reply #9 on: September 14, 2015, 03:49:06 PM »
^^^good answer/suggestion^^^
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JS

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Re: Asymmetrics Retaining Axis
« Reply #10 on: September 14, 2015, 09:31:50 PM »
Thanks for both replies and suggestions.

2handedrook12

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Re: Asymmetrics Retaining Axis
« Reply #11 on: September 14, 2015, 10:16:37 PM »
I thought 5 inch pin to pap has a rollier motion in comparison to 2.5 inch pin to pap...
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Channelsurfer

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avabob

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Re: Asymmetrics Retaining Axis
« Reply #13 on: September 30, 2015, 02:15:17 PM »
As a low  rev, slower speed senior my best carry when moving deep inside is to use a strong core asymmetric with a pearl or hybrid surface.  I can drill the asymmetric with a weaker layout ( 5 inch or greater pin to PAP )  Biggest problem inside for guys like us is that we out hook or rev rate when we cover a lot of boards.  Finding something that lets me follow the oil in, but also bring the break point in is what you are looking for.  Bringing the break point in allows more continuation through the pins if you can get the core shell matchup right for you ball speed and rev rate.