BallReviews
General Category => Miscellaneous => Topic started by: thewhiz on July 11, 2017, 11:08:00 PM
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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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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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Yes I do use inserts with lifts. When i used a round thumb I had no issues.
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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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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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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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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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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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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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Depending on how the oval is drilled will alter or change the angle of the thumb hole
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Make sure you have a generous bevel on the front of the hole.
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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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^^^^^