At 09:59 AM 8/22/2006, Mats Bengtsson wrote:
I'm planning to build me a new set of Irons using the Apollo Balistik
steel shaft.
I'm thinking about sloping the stiffness from a somewhat firm R in
the 4 iron to S in the 9 and wedges.
Are there someone who can help me with what frequency i should try to
achieve.
I have a Club Scout junior meter.
Sounds to me like you want to achieve a 5.5cpm/club slope (in other
words, 11 cpm per inch). That should move you a little more than half
a flex (firm R to S) over the five club intervals from the 4i to 9i.
As for the absolute frequencies, I'm not going there. Consider:
* Everybody has their own idea for what constitutes R or S.
* The clamping arrangements for the frequency meter can make for
differences of as much as 10cpm, and often up to 5cpm.
So instead, let me recommend that you measure -- in YOUR frequency
meter with your clamping arrangement -- a club whose flex you really
like. Then, for the new set, build the club of that same length to
that same frequency. Build the rest of the clubs to the 5.5cpm/club
slope up and down the set.
As for the wedges, keeping the same slope (based on length,
11cpm/inch) will give you the same stiffness. For my own clubs, I
usually like to let my wedges get a little softer, due completely to
the weight of the head. That is, I cut the shafts the same stiffness
(based on a tip weight) as the 9-iron, then let the frequencies be
whatever they are when the heavier wedge heads are added.
Hope this helps!
DaveT
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