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Butt trim 1/2" from iron shafts effect on Swing weight?

El Rayo X

El Rayo X

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I have a set of Cobra Forged Tec Black irons that was built with/ Fuji Pro 75 R2 that came out with pretty heave swing weights, D6-7
I suspect they are 1/2" over, when I look at them side by side with my Cally Elytes and PXG XP sets.
My mind says swing weight will go up if I butt trim 1/2", All other components remaining the same, however I am not schooled in club building.
Am I correct in my thinking?
 
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Swing weight will go down something like 2-3 points.
 
This^

And it sounds like the standard culprits I mentioned in your other thread are indeed at play here. Length is a quick SW killer.
 
OldandStiff said:
This^

And it sounds like the standard culprits I mentioned in your other thread are indeed at play here. Length is a quick SW killer.
Click to expand...
Interesting.
I apparently lack understanding in this area.
I appreciate your insight and advice.
Thanks again (y)
 
SW will go down.
 
Butt trimming will also effect the shaft flex(usually make it play softer). This is pending the shaft profile.

As others have said with 1/2" trim it will mostly be a SW thing
 
JAyer38 said:
Butt trimming will also effect the shaft flex(usually make it play softer). This is pending the shaft profile.

As others have said with 1/2" trim it will mostly be a SW thing
Click to expand...
Any trimming will make it play stiffer.
 
You can also counteract that decrease in SW with different grips. Add a heavier grip, the SW will go back up
 
golfinnut said:
You can also counteract that decrease in SW with different grips. Add a heavier grip, the SW will go back up
Click to expand...

Heavier grip will make the SW go down. Have to go lighter to increase SW.
 
Lord Tox said:
Trimming from 1/2" long to standard length? Wouldn't it just play as intended?
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I'm just saying they will play stiffer than they are now. Shorter is stiffer. Shaft companies mostly measure that to their raw length, because they can control that. Head weights, hosel lengths, etc can create a wide variation in actual cut length and effective stiffness depending on the individual builds.
 
Update:
Builder is fixing.
New SW's will be D0-1 for 6-9 iron and D2-3 for the PW/GW.
Butt trimmed approximately 1/2" on almost every club.
Picking them up this AM and going to the Range

BTW, butt trimming a shaft may technically make it stiffer in the handle, depending on profile, however 99% of folks wouldn't notice it.
 
OldandStiff said:
Any trimming will make it play stiffer.
Click to expand...

Added info on this: technically, butt trimming will make the shaft stiffer, but this is a science fair difference: you could measure shaft oscillations to determine slight added stiffness, but it's not likely something golfer could feel. (but golfer might feel SW change)

If you tip-trim a shaft, this would produce a more pronounced stiffer flex because you were shortening the shaft's flexible end. (This is not recommended for taper tip shafts)
 
ChipNRun said:
Added info on this: technically, butt trimming will make the shaft stiffer, but this is a science fair difference: you could measure shaft oscillations to determine slight added stiffness, but it's not likely something golfer could feel. (but golfer might feel SW change)

If you tip-trim a shaft, this would produce a more pronounced stiffer flex because you were shortening the shaft's flexible end. (This is not recommended for taper tip shafts)
Click to expand...
I don't really want to quibble, but a shorter shaft, screw, beam, board, etc is stiffer, regardless of which end is cut. With a shaft tipping can have more of an effect but if you take a half inch off the butt end I'll notice it being stiffer and it will measure stiffer.

Like I said it's not something I want to spend a lot of time debating about because it's fact. I think the idea being floated that it has no discernable effect isn't one people will benefit from. These are the kinds of things dismissed or not talked about in fittings that create bad end user experiences, and I'm always against that. No different than the bigger grip decided at the last minute that will lighten the swing weight, or the extra inch or tipping that might be required making it play softer. Best all around to plan for these things.
 
Think of this… your 8 iron is likely 1/2” shorter than your 7 iron. And the 8 iron shaft WILL be stiffer on the frequency meter. But how many can actually detect that stiffness difference?
 
1/2 inch off will drop 2.5-3.5 points depending on shaft and it’s curve
 
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