BallReviews

General Category => Drilling & Layouts => Topic started by: strikeordie on August 28, 2015, 04:22:31 PM

Title: opening up the thumb hole
Post by: strikeordie on August 28, 2015, 04:22:31 PM

So far this season I have developed a callus on each side of my thumb. Now all of my thumbholes are too tight. It is a pain in the ass to keep bringing balls to my driller so that he can open them up. Should I go purchase a bit from home depot and open them up myself? Or should I get an extender for my dremel and grind the slug away?

Title: Re: opening up the thumb hole
Post by: Strider on August 28, 2015, 04:56:15 PM

If the callus is from bowling, you need to find a good pro shop and have your grip and span checked.  A bad fit will cause all kind of hand problems.  Opening up the thumb hole to compensate is a temporary Band-Aid.  You need to fix the root problem.

Title: Re: opening up the thumb hole
Post by: strikeordie on August 28, 2015, 05:06:35 PM

I got the callus from using a spare ball that had a snug thumbhole. I got the thumbhole opened up and have a nice clean release with that ball. However the callus doesn't seem to be going anywhere even if I file it.

Title: Re: opening up the thumb hole
Post by: northface28 on August 28, 2015, 06:11:13 PM

Quote from: strikeordie on August 28, 2015, 05:06:35 PM

I got the callus from using a spare ball that had a snug thumbhole. I got the thumbhole opened up and have a nice clean release with that ball. However the callus doesn't seem to be going anywhere even if I file it.

Then you don't have a nice clean release, you are dragging or rubbing in some fashion.

Title: Re: opening up the thumb hole
Post by: Aloarjr810 on August 28, 2015, 06:26:20 PM

Do have a round or oval thumbhole? If round you may need a oval.

(https://www.ballreviews.com/proxy.php?request=http%3A%2F%2Fwww.jayhawkbowling.com%2FPro_s_Corner%2FFitting_Tips%2Ffig10a.jpg&hash=002d014b7f3803d8a2c021f54c9096194a234513)

causes:
1-Lack of flesh between first and second thumb joints
2-Hole Too Tight
3-Round Hole Drilled - should be Oval

Title: Re: opening up the thumb hole
Post by: TheGom on August 28, 2015, 08:06:03 PM

Quote from: Aloarjr810 on August 28, 2015, 06:26:20 PM

Do have a round or oval thumbhole? If round you may need a oval.

(https://www.ballreviews.com/proxy.php?request=http%3A%2F%2Fwww.jayhawkbowling.com%2FPro_s_Corner%2FFitting_Tips%2Ffig10a.jpg&hash=002d014b7f3803d8a2c021f54c9096194a234513)

causes:
1-Lack of flesh between first and second thumb joints
2-Hole Too Tight
3-Round Hole Drilled - should be Oval

Main causes for the inside one on the thumb is............?

Title: Re: opening up the thumb hole
Post by: Aloarjr810 on August 28, 2015, 08:26:40 PM

Quote from: TheGom on August 28, 2015, 08:06:03 PM

Main causes for the inside one on the thumb is............?

(https://www.ballreviews.com/proxy.php?request=http%3A%2F%2Fwww.jayhawkbowling.com%2FPro_s_Corner%2FFitting_Tips%2Ffig9.jpg&hash=547d62ad8e044b713d19131293083497f1f24937)
    A - Span Too Short
    A - Excessive Reverse Pitch
    B - Excessive Left Pitch
    B - Hole Too Small

-----------
(https://www.ballreviews.com/proxy.php?request=http%3A%2F%2Fwww.jayhawkbowling.com%2FPro_s_Corner%2FFitting_Tips%2Ffig10.jpg&hash=3ebc88aabc80329e6f1eb81455d853b76ae4d3a1)

    Excessive Right Pitch
    Hole Too Small

You can see all the fitting tips here:
http://www.jayhawkbowling.com/Pro_s_Corner/Fitting_Tips/fitting.html (http://www.jayhawkbowling.com/Pro_s_Corner/Fitting_Tips/fitting.html)