No Bro - it ain't, but i like r400s better. I got two boxes of them waiting on my next inspired iron set. The word STANDARD means something. Google up some stuff: 'specially responses from True Temper in response to this " what is the average human" question, and come back to tell us what you found.Standard DG wedge shaft is S200.
Wait..to be fair...Oem standard here aint Oem standard there....
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