BallReviews

General Category => Drilling & Layouts => Topic started by: witesoxwoz22 on April 17, 2011, 02:10:00 AM

Title: Base of thumb discomfort
Post by: witesoxwoz22 on April 17, 2011, 02:10:00 AM
I was feeling pain at the base of my thumb with my original span.  Out of curiosity,  with another ball, I had it drilled with a span 1/8" shorter.  Now I don't feel discomfort, but feel the ball rubbing on the tendon at the base of my thumb.  Also, about an inch directly below the base of my thumb on the "fatty" part of the hand, it feels a bit sore. 
 
I am at a loss at what would be cause.  Any thoughts?


- woz
Title: Re: Base of thumb discomfort
Post by: EFFEN 10 on April 17, 2011, 04:40:17 PM
Was a thumb pitch change made to go along with the shorter span?


The more I practice,the luckier I get.
Title: Re: Base of thumb discomfort
Post by: witesoxwoz22 on April 17, 2011, 07:20:51 PM

 
EFFEN 10 wrote on 4/17/2011 4:40 PM:
Was a thumb pitch change made to go along with the shorter span?


The more I practice,the luckier I get.
 
Pitch is the same 3/8 rev 1/8 to palm. Do you think if I cut down on the reverse that would help?


- woz
 
Edited by witesoxwoz22 on 4/17/2011 at 7:21 PM
Title: Re: Base of thumb discomfort
Post by: JohnP on April 18, 2011, 07:39:48 AM
What are your new spans?  --  JohnP


Title: Re: Base of thumb discomfort
Post by: Brian Green on April 18, 2011, 09:34:21 AM
 I'm going go in a different direction and say the thumbhole may not be beveled enough.  

"USAbowlersmart.com - only the best Survive"

 PBA East region member
Title: Re: Base of thumb discomfort
Post by: EFFEN 10 on April 18, 2011, 05:00:18 PM

 



JohnP wrote on 4/18/2011 7:39 AM:
What are your new spans?  --  JohnP



+1    Seems to me you're a good candidate for a relaxed finger tip fitting.

The more I practice,the luckier I get.
Title: Re: Base of thumb discomfort
Post by: witesoxwoz22 on April 18, 2011, 08:24:16 PM

 
JohnP wrote on 4/18/2011 7:39 AM:
What are your new spans?  --  JohnP


 
Old span 4 3/4 4 13/16 new span 4 10/16 4 11/16.  Since I have a flat thumb, is it possible maybe I should have an oval thumb hole?  Seems like the hole has to be opened up too much leaving too much space for the front and back of thumb, but snug on the sides.  I hope that made sense...


- woz
Title: Re: Base of thumb discomfort
Post by: blacknois on April 18, 2011, 09:07:20 PM
i would also say to bevel the thumb more

Title: Re: Base of thumb discomfort
Post by: tommyboy74 on April 18, 2011, 09:31:48 PM
I had a similar issue when I had my 3 most recent balls drilled.  My thumb was also moved up slightly and the pitch changed due to the fact that I was always tearing my thumb with the old span length (would tear at the base of the thumb and on occasion would tear the side due to the thumbhole shrinking.)  Also, the pitch was too far forward on the old balls. 

The solution was to bevel the thumb more, and it did the trick.  I also added a thumb slug to all of the new balls, so this way the feel is consistant.  It's nice to not rely on the Robby's skin protector like I used to. 


My arsenal

Heavy Oil: Storm Virtual Gravity Nano: 4000 AB
Medium-Heavy Oil: Still to be determined
Medium Oil: Roto Grip Nomad Dagger: 1500 polished

Medium-Light Oil: Roto Grip Rising Star: 1500 polished
Title: Re: Base of thumb discomfort
Post by: JohnP on April 19, 2011, 08:22:04 AM
lYou really need to work in person with a good fitter, this is hard to do over the internet.  More bevel might help, but 3/8 reverse is a little much for your new spans if your thumb flexibility is normal.  You're probably squeezing to keep a secure grip.  If the bevel doesn't do the job try 5/16 or 1/4 reverse.  --  JohnP