Do you have the NS Pro 1040 GH shafts and what are the trimming instructions for them? I want to re-shaft a set of my irons with them.
We do not have any trimming instructions for this shaft. From searching on the web I saw some information that Nippon made this shaft for Cleveland. I do see some 40″ raw length shafts available for sale. You might want to contact Cleveland to see if they might have some trimming instructions for these shafts. https://www.clevelandgolf.com/en/navigation-asset.html
An educated guess if these are 40″ raw length shaft would be to follow our trim code IR6 at this link.