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Author Topic: Oval Thumb  (Read 2000 times)

thewhiz

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Oval Thumb
« on: July 11, 2017, 11:08:00 PM »
Just went to an oval thumb.  First time ever.  After bowling my ring finger hurts.  Its like when I put my thumb in the ball my ring finger is pulling out.  Anyone ever go thru this.  What adjustments did you make.
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Juggernaut

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Re: Oval Thumb
« Reply #1 on: July 12, 2017, 08:14:28 AM »
Sounds like your span for that finger is too long.

Some people like a stretched span, some do not. Either way, you can easily get one too long sometimes.

 Do you use finger inserts?  If so, do they have lifts on them?
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thewhiz

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Re: Oval Thumb
« Reply #2 on: July 12, 2017, 08:16:54 AM »
Yes I do use inserts with lifts.  When i used a round thumb I had no issues.
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itsallaboutme

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Re: Oval Thumb
« Reply #3 on: July 12, 2017, 08:29:08 AM »
If your span didn't change have the angle of the oval checked.  The angle could be off and you are manipulating your hand to account for it.
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JustRico

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Re: Oval Thumb
« Reply #4 on: July 12, 2017, 01:49:47 PM »
It depends on how the oval is cut
The upper edge of the oval has moved lengthening the ring finger length
The span should be based off that edge
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charlest

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Re: Oval Thumb
« Reply #5 on: July 12, 2017, 02:16:12 PM »
Quote from: thewhiz on July 12, 2017, 08:16:54 AM
Yes I do use inserts with lifts.  When i used a round thumb I had no issues.

It's not the round thumb. It's the measuring of the spans and angles that are wrong.
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tburky

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Re: Oval Thumb
« Reply #6 on: July 12, 2017, 04:22:01 PM »
Quite a few years ago I went to an oval for my thumb. I know I had to shorten my span esp ring finger because I made all the oval cuts in upper left hand corner of my thumb. Best fit I've ever had done. Still use it.
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JustRico

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Re: Oval Thumb
« Reply #7 on: July 12, 2017, 05:15:37 PM »
It's all based off where the span is taken off the oval plus how tight the oval is, which minimizes any flexibility
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Roller

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Re: Oval Thumb
« Reply #8 on: July 12, 2017, 07:54:09 PM »
I went to an oval thumb last season, and changed my span, due to carpal tunnel influence. I found it very helpful, especially when I added an eighth of forward pitch on the thumb with it. This allowed me to hold the ball without squeezing all the way. It is definitely worth exploring.
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JustRico

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Re: Oval Thumb
« Reply #9 on: July 12, 2017, 07:57:01 PM »
Depending on how the oval is drilled will alter or change the angle of the thumb hole
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strikeking12

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Re: Oval Thumb
« Reply #10 on: July 13, 2017, 10:54:07 AM »
Make sure you have a generous bevel on the front of the hole.
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JustRico

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Re: Oval Thumb
« Reply #11 on: July 13, 2017, 11:35:55 AM »
Bevel should only be used for shaping NOT for release ease or comfort...if it's needed the span or angles are incorrect
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bergman

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Re: Oval Thumb
« Reply #12 on: July 13, 2017, 11:52:03 AM »
^^^^^
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