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Aiming
Your Golf Shaft Spine
in the Right Direction
A
golf shaft spine is actually a byproduct of the manufacturing process.
It is virtually impossible to manufacture a shaft without
one, at least not without paying an arm and a leg for it.
A
spine will run down the full length of a shaft. To visualize
this, take a piece of paper (8½ x 11) and roll it up. The
edge of the paper on the outside of the roll running lengthwise would
be the spine.
A shaft may actually have
several spines. The process I will go through here will help
you identify the dominant spine plane.
In
order to find the spine
on a shaft you will need a spine
finder. A spine finder is not much more than a tube
with a couple of bearings mounted in both ends, and then a loose third
bearing to bend the shaft with.
To find
the spine a shaft would be inserted into the spine
finder with the tip end of the shaft sticking out the
farthest. Place the third bearing over the tip, maybe 3
inches down the spine, and pull down on the bearing bending the shaft.
Rotate the shaft in the bearings with one
hand while holding the bearing with the other. When you let
go of the shaft, it will rotate to its neutral bending position
or NBP.
If you are pulling straight down on the shaft with
the loose bearing, the NBP will be on the top of the shaft.
The spines of the shaft will usually be about 90º from the
NBP.
Once the spines are marked, you can now proceed
to build your clubs. Spine placement will be very important
in making your clubs very consistent.
There
is some dispute as to the proper position of the spine as it relates to
the clubhead. There is one thing, however, that all
clubmakers will agree on, and that is put the spine in the same
position on all of your clubs within a set. That will give
you the most consistency.
Some clubmakers will tell
you to point the golf shaft spine toward the target when you are at
address. Some will point it toward the toe. I tend
to point it toward the toe so as to reduce any toe droop that might
occur during the swing.
Like I said before, just
make sure you place the spine in the same position on all of your clubs
for the most consistancy.
Return
from Golf Shaft Spine to Advanced
Club Assembly
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