Andre,
Whoops, wrong again...didn't look back at the chart before I answered you.
Would guess the different cpm numbers for the two clamp lengths and tip weights
are on a raw shaft, but don't really know. My head's still pretty stuffy after
running a temperature with a sinus infection all last week. :-) Would guess the
cpm driver numbers with the 198 gram tip weight are with the 5" clamp. Do know
the cpm/inch difference in driver length is correct, though.
Bernie
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----- Original Message -----
From: Bernie Baymiller
To: ShopTalk@mail.msen.com
Sent: Monday, March 03, 2008 11:10 AM
Subject: Re: ShopTalk: Long Drive Shaft Frequencies
Andre,
I assume BC means butt clamp. Before I had my Neufinders, I didn't have a
frequency meter and used this chart for "starting points"...it was more
prominent on their website then. (I had to really hunt to see if it was still
there.) I talked to them about the numbers back then, maybe 5 years ago, but
can't remember for sure what they said about them. Think the different butt
clamps with different tip weights come out to the same cpm number. Guess
someone with a frequency meter could confirm that.
I can confirm the flex difference on my NF4 now, though. A PE-A on my NF4
reads 2.76kg raw and 2.94kg tipped 1". In some e-mail NF4 discussion, .03 kg on
a calibrated NF4 was said to be about 1 cpm (at least that's what I wrote
down). That would make an inch about 6 cpm...just what's on the chart.
Bernie
[EMAIL PROTECTED]
----- Original Message -----
From: André Cantin
To: ShopTalk@mail.msen.com
Sent: Monday, March 03, 2008 9:05 AM
Subject: Re: ShopTalk: Long Drive Shaft Frequencies
Hi Bernard;)
On the link you provided. Does B/C mean butt clamp? And is SK fiber
using 2 different weights for measuring butt frequency with 2 different
clamping fixtures?
WOODs 7" BC / 275g
5" BC / 205g
A
----- Original Message -----
From: Bernie Baymiller
To: ShopTalk@mail.msen.com
Sent: Monday, March 03, 2008 8:33 AM
Subject: Re: ShopTalk: Long Drive Shaft Frequencies
Paul,
Check out this SKFiber cpm chart.
http://skfiberc.startlogic.com/wood-cpm-chart.html
I play a 48" Bang-O-Matic "golf course" driver with a Pure Energy A-flex
tip trimmed an inch...that's about 220 cpm. A few years ago, I played a 48"
driver with S-flex at 236 cpm. You can see on the chart there's a 6 cpm drop
for ever added inch of length. Those numbers would make a 48" driver at 254 cpm
about a XX, I guess.
Bernie
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