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Author Topic: A couple of quick questions  (Read 1032 times)

dR3w

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A couple of quick questions
« on: December 02, 2011, 02:36:29 AM »
1.  Where did the search feature go?  ... I haven't been here in a few months.

2.  Does anyone know if the BTM reviews changed their scales at any time in the past?  I mean did the hook rating or backend rating change from inception till now?

3.  Does anyone know where the BTM reviews spreadsheet is?  There used to be a sticky with a good amount of general information, but I can't find that in the new forum.

 

I'm sorry if this has been touched on in the past, I just haven't been here in a while.

 

Thanks in advance,

 

drew 



dR3w

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Aloarjr810

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Re: A couple of quick questions
« Reply #1 on: December 02, 2011, 12:50:15 PM »
BTM changed the scales back in 2002 like for example: Hook went from 1-50 to 1-100. and currently they are changing  RG and Diff. to the MFG.s numbers.
 
The ball review spreadsheet is here on my bowling stuff site

Here's a BTM pdf  which explains their ratings, from about 2009 so it doesn't have the most recent changes.
 
Aloarjr810
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Click For My Grip
 
Edited by Aloarjr810 on 12/2/2011 at 1:51 PM
 
Edited by Aloarjr810 on 12/2/2011 at 8:35 PM
Aloarjr810
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Click For My Grip

charlest

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Re: A couple of quick questions
« Reply #2 on: December 02, 2011, 06:34:31 PM »
They also changed length to an actual number of feet past a certain milestone about 4 years ago or thereabouts. Previously it was just a relativistic number.
 
Also many of their numbers are  based on the theoretical "stacked leverage" drilling, which I believe is no longer accurate or meaningful.


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