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Shaft weight / swing weight - butt cutting


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Not quite. 9g of extra shaft weight is roughly +1sw pt. 1/2” shorter is about -3sw points. You’ll need 4g to 6g more headweight to get back. You might not even notice, I’d worry more if your flight/launch changes, if at all.

Edited by A.Princey
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12 hours ago, justcallmemoses said:

what happens in this scenario?
 

If playing a 60g shaft (raw weight 60g @ 46 inches) 

 

will bumping up to a 70g version of the same shaft offset the swingweight loss when reducing the playing length from 45.5 to 45 inches?

 

The most important point is that when you change shaft weight or playing length, you should NOT even try to maintain the same swing weight.   You really need to refit yourself for swing weight.  Go to the range with lead tape and add it incrementally and adjust by feel and performance, not by swing weight value.

 

However to answer the question - most likely not but ....

 

It really depends on the specific model shaft.   Most (but not all) shaft designers will adjust the balance point such that the change in shaft weight will not effect the swing weight at all significantly.  

 

That's why the "rule" for the effect of shaft weight on swing weight is completely useless, it doesn't account for the changes in balance point that are very common in modern shafts.

 

With driver shafts it's even more unpredictable as to what can happen to the balance point with different amounts of "counterbalancing" (really balance point adjustments) to help swing weight with longer playing lengths.

 

So short answer is you wont know what will happen to the swing weight until you actually install the shaft and put it on a scale.

 

Edited by Stuart_G
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