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Author Topic: Pin down - Hole down drilling  (Read 1423 times)

mrmack

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Pin down - Hole down drilling
« on: August 07, 2007, 12:04:48 AM »
What is a "pin down, holw down" drilling? When would you use a ball laid out this way?  What type of ball reaction is expected from this drilling?  What type of ball (polished or dull, strong or weak, etc.) would you use with this drilling and on what type of lane condition?  Thanks.
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Russell

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Re: Pin down - Hole down drilling
« Reply #1 on: August 07, 2007, 09:38:58 AM »
In all honesty your question is too vague...

"Pin down, hole down" is a generalized term for drilling any ball.  It means putting the pin below the fingers, and the hole in the thumb quadrant.

There is no particular ball that this works on.  I have used it on everything from a Thunderstruck to a Strike Zone to a T-Road Pearl to a Jolt.

What the drilling does depends on the bowlers PAP...you HAVE to know that before being able to tell what a drilling will do.
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mrmack

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Re: Pin down - Hole down drilling
« Reply #2 on: August 07, 2007, 03:35:52 PM »
My PAP is 5 1/2 > 1 1/4 up. Sorry about being vague.  I don't understand this stuff all that well.  I heard someone talking about a "pin down, hole down" drilling and I am curious about what it was and other questions about it listed above.  Any info you can give would be greatly appreciated.
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shelley

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Re: Pin down - Hole down drilling
« Reply #3 on: August 07, 2007, 04:03:39 PM »
Around here, pin-down hole-down generally means the Rico layout.  With your PAP, it would put the pin 1 1/4" directly above the grip center, the CG at 4:30, and a weight hole 6 3/4" from the pin on a line through the CG.  The low hole raises the bowtie to avoid flaring over the finger holes.

The reaction is supposed to be early (owing to the low pin), smooth, and continuous.  It shouldn't be jumpy on dry backends and shouldn't be inconsistent on spotty backends.

SH
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