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Author Topic: How much influence can a change in pap have?  (Read 1943 times)

akt22

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How much influence can a change in pap have?
« on: January 24, 2010, 04:33:21 AM »
I know this is a bit silly to ask but how much influence can the pap have to ball reaction?

I ask because a person told me that the same drilling can have very different results if the difference in the pap is something like 5 across, 1/4 over vs 5 across, 1 1/4 over.

Also can your pap change as you work on your release and can that have a significant effect on your ball reaction?
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dizzyfugu

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Re: How much influence can a change in pap have?
« Reply #1 on: January 24, 2010, 03:57:20 PM »
PAP shift CAN have tremendous effect on the ball's recation, esp. when the ball has a strong pin position around leverage, or when the MB on a high MB core is at 90° to the PAP. AFAIK, a change of 1" can already be enough to mess up a drilled ball's reaction.

In the worst case, the core won't migrate towards its PSA - but rather towards the pin. Backwards flare can be a potential result, or something like an axis drilling reaction - very rolly, little back end, and a rather smooth hook.
If the MB moves into the track, a high tracker can also suffer from reversed flare.


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akt22

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Re: How much influence can a change in pap have?
« Reply #2 on: January 24, 2010, 08:26:23 PM »
I see so if a slight shift in pap can significantly change ball reaction, why do pro shop operators at times work with an assumed pap?

Also how much can working on a release change your pap?  I ask because all the equipment I had used up to this point were drilled with a pap when I was just started to bowl.  I had gone through a lot of practice with my release but lately even though my new release feels consistent and leveraged, I can't control my ball reaction.

At first I thought it was the lane conditions, but I've been to 3 houses and the situation remains the same.  I thought it was the ball dying, but my reaction is too inconsistent to be that.  I also thought it was my new release, but I can consistently control my low flaring Maxim just fine for some reason. This is why I'm thinking it might have to do with my pap unless I'm mistaken.
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stormed1

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Re: How much influence can a change in pap have?
« Reply #3 on: January 24, 2010, 10:17:25 PM »
A lot will depend on how much it changed and in what direction. If it moves closer it will lessen the pin to pap distance. This will increase the flare potential. If the distance is larger it will increase the pin to pap measurement and decrease the flare potential. How much it changes things will vary ball to ball depending on layout, surface, etc.
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JohnP

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Re: How much influence can a change in pap have?
« Reply #4 on: January 25, 2010, 09:31:44 AM »
quote:
How much influence can a change in pap have?


Not as much as most people think.  Surface changes and changes in axis tilt and/or axis rotation (with the same PAP) affect reaction more than a (reasonable) change in PAP.  By reasonable I mean up to 1 1/2", it's very difficult to change your PAP by more than that.

stormed1 -- If a bowler has a beginning 3" pin to PAP layout explain how a decrease increases the flare.  --  JohnP
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Brickguy221

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Re: How much influence can a change in pap have?
« Reply #5 on: January 25, 2010, 09:53:43 AM »
quote:
Not as much as most people think. Surface changes and changes in axis tilt and/or axis rotation (with the same PAP) affect reaction more than a (reasonable) change in PAP. By reasonable I mean up to 1 1/2", it's very difficult to change your PAP by more than that.

 


I agree with John.......Especially for a house/league bowler like myself that is older with lower revs and not a lot of hand.
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