Harry,
My info came from the slide show that was linked on Tim's site. The
slide show says it is a presentation by the PCS's Frequency Committee
that developed the system/software. One of the slides is of the "Data
Input Chart". It is filled out as an example. It shows that for this
case, the Calibrating shaft cpm measured by PCS and the frequency
measured by the clubmakers system were the same. It also shows that
no adjustment is made for what they call "coefficient of flex value"
which apparently is a fudge factor that can be applied for those
shafts that play stiffer or weaker than their frequency. In that
table, they show a 38" 289 is a 4.0 and a 38" at 5.0 being 299. I
extrapolated what a 38" 6.0 would be (+10cpm = 309cpm) and that a 45"
6.0 would be ( 7" longer @ 8cpm/in = minus 56cpm or 309 - 56 = 253).
Brad
On Dec 13, 2008, at 10:19 AM, Harry F. Schiestel wrote:
Hi Brad, Andre, Tim, and ALL
Does everyone assume R flex is 4.5 Flex? Years ago R flex was 5.5
designation.
A few years ago SK Fiber published the PCS Equalizer chart in their
shaft catalogue.
This is where I got the following cpm vs. #.# Flex designations:
What do you tell a customer when they want to know Letter and not
Number flex?
Brad you stated: 5-Iron = 38" @ 6.0 be 309 cpm.
This is different from my PCS Equalizer chart as follows:
5-IRON at 38” (no grip)
318cpm, 6.5 Flex – I assume this to be X Flex
313cpm, 6.0 Flex – I assume this to be S+ Flex
308cpm, 5.5 Flex – I assume this to be S Flex
303cpm, 5.0 Flex – I assume this to be R+ Flex
298cpm, 4.5 Flex – I assume this to be R Flex
Brad you stated: Driver = 45" @ 6.0 be 253 cpm.
This is different from my PCS Equalizer chart as follows:
DRIVER at 45” (no grip)
258cpm, 6.5 Flex – I assume this to be X Flex
253cpm, 6.0 Flex – I assume this to be S+ Flex
248cpm, 5.5 Flex – I assume this to be S Flex
243cpm, 5.0 Flex – I assume this to be R+ Flex
238cpm, 4.5 Flex – I assume this to be R Flex
Tim Hewitt has stated, “The PCS flex values did not align to the
Rifle values even though they used the same numbering system.”
PCS's Equalizer software system: http://www.myostrichgolf.com/equalizer/
Thanks Harry S
www.myGolfDNA.com
Wingham, Canada
From: owner-shopt...@mail.msen.com [mailto:owner-shopt...@mail.msen.com
] On Behalf Of Brad Smith
Sent: Saturday, December 13, 2008 11:41 AM
To: ShopTalk@mail.msen.com
Subject: Re: ShopTalk: PCS Equalizer
Andre,
In the link from Tim, one of the charts shows a flex value of 4.0
for a 38" iron at 289cpm. That value was for a freq meter that read
the same as the calibration shaft standard, according to the chart.
That would make a 38" @ 6.0 be 309, or a 6.0 45" driver be
253cpm. As I understand, these are for ungripped clubs.. Do you
know if this is the "standard" for that system?
Thanks Brad
