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 Post subject: Layouts for 2 handed bowler
 Posted: Sat Jun 02, 2018 10:16 pm Post Number: #1 Post
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I run a proshop in New Zealand, I don't get many 2 handed bowlers to drill for looking for some layouts and advice, he has a very high track and clips the middle finger sometimes, we have tried a performance fit and this has helped a little.

Specs are

Release speed 18mph
Tilt 5-6 degrees
Rotation 65 degrees
Revs 450

Any help is appreciated
Regards Harry


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 Post subject: Re: Layouts for 2 handed bowler
 Posted: Sat Jun 02, 2018 10:36 pm Post Number: #2 Post
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What is his PAP measurement?
Also, how is it measured? from the bridge or a pseudo span?

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Eric Hartwell

Right Handed
PAP 4.75" up 1/2"
45* rotation
12* tilt
330 rev rate
16 mph off hand


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 Post subject: Re: Layouts for 2 handed bowler
 Posted: Sun Jun 03, 2018 7:18 am Post Number: #3 Post
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The bowler is Right handed.
Pap is measure from the middle of the bridge and is 5 1/4 and 2 1/4 down.

Thanks for your help


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 Post subject: Re: Layouts for 2 handed bowler
 Posted: Sun Jun 03, 2018 8:39 pm Post Number: #4 Post
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Harrytech wrote:
The bowler is Right handed.
Pap is measure from the middle of the bridge and is 5 1/4 and 2 1/4 down.

Thanks for your help

With that PAP the tilt is actually negative 5* to get it to hit the middle finger.

Higher flaring layouts will get the track off the finger hole sooner.


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Eric Hartwell

Right Handed
PAP 4.75" up 1/2"
45* rotation
12* tilt
330 rev rate
16 mph off hand


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 Post subject: Re: Layouts for 2 handed bowler
 Posted: Sun Jun 03, 2018 10:12 pm Post Number: #5 Post
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Release speed 18mph
Tilt 5-6 degrees
Rotation 65 degrees
Revs 450
Sweetspot 110* total, 2.25:1 ratio

Asymmetrical layouts
Totally Strong ........... 65-4.5-25
Midlane .................... 55-4-35
Benchmark ............... 75-3.25-35
Long and Strong ....... 90-3-35
Control .................... 75-3.25-55
low flare .................. 90-2-35

Symmetrical layouts
Totally Strong ........... 65-3.5-20
Midlane .................... 60-4-30
Benchmark ............... 80-4.25-30
Long and Strong ....... 90-4.25-30
Control .................... 75-4.5-50
low flare .................. 90-5-30

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Eric Hartwell

Right Handed
PAP 4.75" up 1/2"
45* rotation
12* tilt
330 rev rate
16 mph off hand


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 Post subject: Re: Layouts for 2 handed bowler
 Posted: Tue Jun 05, 2018 1:47 pm Post Number: #6 Post
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If he's only drilling 2 finger holes then that Val position probably doesn't mean much other than putting it at a flare safe position.


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 Post subject: Re: Layouts for 2 handed bowler
 Posted: Tue Jun 05, 2018 4:21 pm Post Number: #7 Post
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gunso wrote:
If he's only drilling 2 finger holes then that Val position probably doesn't mean much other than putting it at a flare safe position.

The VAL is a line that is spherically parallel to the grip centerline. I has nothing to do with holes being flare safe. It is a reference line that the PAP is on and the pin is positioned from.

Large VAL Angles positioning the Pin below the fingerline will run risk of the ball's track flare running over the finger holes.

This reminded me to ask where the pin is located on the ball where he is clipping the middle finger?

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Eric Hartwell

Right Handed
PAP 4.75" up 1/2"
45* rotation
12* tilt
330 rev rate
16 mph off hand


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 Post subject: Re: Layouts for 2 handed bowler
 Posted: Wed Jun 06, 2018 10:22 am Post Number: #8 Post
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EricHartwell wrote:
The VAL is a line that is spherically parallel to the grip centerline. I has nothing to do with holes being flare safe. It is a reference line that the PAP is on and the pin is positioned from.

Large VAL Angles positioning the Pin below the fingerline will run risk of the ball's track flare running over the finger holes.

This reminded me to ask where the pin is located on the ball where he is clipping the middle finger?


"putting it" was a referral to putting the pin at a flare safe position since the VAL angle controls the pin location along with the pin distance. I should have made myself clearer


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 Post subject: Re: Layouts for 2 handed bowler
 Posted: Wed Jun 06, 2018 8:31 pm Post Number: #9 Post
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EricHartwell wrote:
With that PAP the tilt is actually negative 5* to get it to hit the middle finger.

Higher flaring layouts will get the track off the finger hole sooner.


What software is that?


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 Post subject: Re: Layouts for 2 handed bowler
 Posted: Sat Jun 09, 2018 2:28 am Post Number: #10 Post
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MeNoRevs wrote:
What software is that?


It is the Drill Sheet Database. The thread that introduced it can be found here...

viewtopic.php?f=7&t=9436

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Eric Hartwell

Right Handed
PAP 4.75" up 1/2"
45* rotation
12* tilt
330 rev rate
16 mph off hand


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