win a ball from Bowling.com

Author Topic: Measuring full span?  (Read 1662 times)

LaneHammer20

  • Hero Member
  • *****
  • Posts: 1710
Measuring full span?
« on: January 28, 2010, 11:49:25 PM »
I was wonderin how the correct way to measure your full (true) span is. My method that I always have used is measuring from the lift on my finger insert to the edge where my thumb enters the thumb slug. With my cloth measurer it has always came out to 4 3/16 middle, 4 5/16 ring.

The reason why I ask is I watched my por shop guy measure my span, and he used comething contoured to the ball, mad eofr this obviously but he also had a stick or something that he stuck in the hole up against the front of my tumb and measured to that point. My measurements came to 4 1/2 middle, 4 9/16 ring. I was thinking about getting a ball drilled from buddies and wanted to know which measurement I should give them based on how this is done.

I am assuming my pro shop operater is using the correct method and that is my true full span measurement, but would like to know from other pro shops.
--------------------
What is sandbagging???


 

Goof1073

  • Hero Member
  • *****
  • Posts: 2433
Re: Measuring full span?
« Reply #1 on: January 29, 2010, 08:00:09 AM »
Yes, that's an accurate method...many shops utilize it.  The method for measuring all has to do with the ruler of choice.  The "stick or something" approach sounds one of the tool that we utilize for people that have a bunch of bevel, when the other methods seem a bit too variable.  Basically it's a flexible metal ruler that has measurements starting on it's edge.  By putting a pencil (or something similar) in and against the leading edge of a thumb you transfer the initial cut line of the thumb hole to the surface of the ball and measure off of that spot by placing the ruler against it.
--------------------
-Chris: DJ's Pro Shop : Auburn, MA

LaneHammer20

  • Hero Member
  • *****
  • Posts: 1710
Re: Measuring full span?
« Reply #2 on: January 29, 2010, 09:05:23 AM »
I myself use a bunch of bevel.
--------------------
What is sandbagging???


JohnP

  • Hero Member
  • *****
  • Posts: 5819
Re: Measuring full span?
« Reply #3 on: January 29, 2010, 09:59:41 AM »
Whatever you give them, be sure you describe exactly how it was measured.  If you have any doubt about your ability to do so, send them the ball and let them copy it.  --  JohnP

charlest

  • Hero Member
  • *****
  • Posts: 24526
Re: Measuring full span?
« Reply #4 on: January 29, 2010, 03:13:02 PM »
I have a much safer method:

Do not send them any measurements. Send them the ball that fits you best.
Insure it, wrap/box it properly and they will return it.  That way there can be no cause for disagreement.
--------------------
"None are so blind as those who will not see."
"None are so blind as those who will not see."