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Bowling/callus on thumb

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Expert: Chip Aki - 5/26/2010


Question
Hi, Chip, need your help., im developing a callus on the side inner part of my thumb,almost on the knuckle joint,  im right handed, pitches are: fingers 1/4 lat left, 1/2 lat right, 3/16 rev, thumb 3/16 rev -0-latertal, span 4 3/8, 4 7/16.

thanks,

Isaac

Answer
I would make sure the span is not too long, although I would think that would cause some issues at the base of the thumb too.  
I would check th size of the thumb hole.  The placement of the callous suggest squeezing.  I do not think you have excessive pitch in your thumb hole.

Good luck,
Chip

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Chip Aki

Expertise

Ball drilling/fitting, Layouts, coaching related questions, any. USA Bowling Bronze Certified Coach, International Bowling Pro Shops and Instructors Assocation member, 15 years Experience in ball drilling, Storm Staff member.

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Team USA State Champion Indiana'87 and Lousiana '97, National Collegiate Championship Wichita State '87, Ky state Singles Champion '99,Team USA National Finalist '97,'98, USBC Open Singles Champion 2007 (814 series)

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