David,
Of the answers I've seen so far, only Cub seems to share my understanding
of what you're doing. Let's see if we're right.
You are trying to weight a club to swingweight before you cut it to length
at the butt. You have a swingweight scale that allows you to let the bare
shaft protrude beyond the seat, so you're trying to set it up to its
eventual length and add weight to get the desired swingweight, or you're
trying to find the length that will give you the desired swingweight.
Correct so far? If not, ignore the rest.
Your assumption is that the target swingweight should be lower than the
desired swingweight, because the shaft sticking out beyond the seat will
reduce the measured swingweight. I share that assumption. I figure when I
cut away the protruding shaft, I will get a higher swingweight reading, and
that is the one I want.
I use about one point per inch for steel and 1/2 point per inch for
graphite. I also derate it one point for the clip I put on the swingweight
scale that allows me to hook the shaft in at a place other than the butt end.
I assume all of this is done with no grips; at least that's the way I do it.
So why is it not working for you? I have no idea. Sorry.
It has worked for me in the past.
I'll be interested to hear what it turns out to be.
Cheers!
DaveT
Hi Dave,
Thanks to all of you who responded.
Dave you have accurately described the situation.
In this case I was building Wishon 952's in TT tx 90 tour x's 1/2" over starting at 300 cpm gripped in the 3 and going up in 4 cpm increments and my intention was to have them at d-3 minimum with as little variance as possible in sw.
I would mock up the 3 and add the appropriate wt to get to d-3 starting with the full length shaft with any excess shaft protruding past the butt stop in my Golfsmith sw scale with one of the 8 weight sorted 52 gram grip's affixed at the top of the shaft with a super thin rubber band and then check freq. and tip until I hit my #, then after re checking sw with about 1 1/2" of tipping and therefore a 1 1/2" less butt protruding past the stop the sw remained at d-3, so I did the butt cut and re checked the sw expecting it to increase a pt or two only to find that it dropped 2 pts to d-1 even though now there was no butt hanging past the stop.
This of course defies logic.
Well, now I would have to add more weight so of course I would have to tip more to hit my cpm # so this shaft would end up in the 4 instead of the 3.
Thinking that I must have missed something I went through this process with the entire set and it kept repeating, by the time I got to the wedge my clubmaker walked in and I showed him the mock up and told him that that the sw was going to decrease when there was no butt protrusion past the stop and he bet me $5.00 and lost.
David
