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Tour issue. I understand CTA but what is CTB and RA?


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#1 Wardonation

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Posted 19 June 2017 - 09:43 AM

Thanks as always...


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#2 wcbjr

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Posted 19 June 2017 - 09:57 AM

Um...what?

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#3 jleduc2200

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Posted 20 June 2017 - 01:42 PM

CTA is COR test A and CTB is COR test B - they require testing on multiple points after hot heads were discovered I believe high on the toe for some brands.  Not sure what the RA tag is or means.
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#4 TollBros

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Posted 21 June 2017 - 11:49 AM

One is the CT test and one is the COR test with the air cannon. The Tour went to testing both now because a certain driver head deemed legal, failed the air cannon Cor test.
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#5 trionz420

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Posted 11 October 2017 - 04:50 AM

What can you assume about a head that has a CTA spec on the spec sticker, but not a CTB spec? Did it fail the CTB?

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#6 J13

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Posted 11 October 2017 - 06:48 AM

 TollBros, on 21 June 2017 - 11:49 AM, said:

One is the CT test and one is the COR test with the air cannon. The Tour went to testing both now because a certain driver head deemed legal, failed the air cannon Cor test.

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#7 stabbinatit

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Posted 02 March 2018 - 03:53 PM

I was wondering the same thing re driver specs.

My 2017 M1 tour issue driver head has the following specs:

Lie:  59.4
Loft:  11.7
FA 0.3
WGT:  200.9
CT:  243
Ra:  3.8

Lie and Loft are self explanatory
FA = face angle
WGT = weight
CT is a measurement of COR

But what does Ra mean?

Thanks.

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#8 noodle3872

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Posted 03 March 2018 - 01:10 AM

 J13, on 11 October 2017 - 06:48 AM, said:

 TollBros, on 21 June 2017 - 11:49 AM, said:

One is the CT test and one is the COR test with the air cannon. The Tour went to testing both now because a certain driver head deemed legal, failed the air cannon Cor test.

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No, it was the 2016 M2 8.5° driver. The toe side on this model exceeded the limit when the USGA added the second testing position but they had already been approved for play.
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