On a Fuji shaft and/or others I have seen there is a S inside a small square. It seems to be a logo of some sort. Not being a shaft guy......What does it mean?
I assume it has something to do with the graphite quality...but, I am really not sure.
Help.
Just my guess but that is their rating for a Stiff flex.
I think literally is S for shaft.....I've seen it on other ones to and I'm pretty sure it was the Integra Professional Super lite, which has the materials by toray rayon/Japan.....pretty sure it is a Japan thing.
Found a pic of the Integra shaft-
Might be hard to see but on the right side (as u are looking at the screen) is the exact same mark....just do a google images search for Integra Professional Super lite shaft and you'll see/find it.
That's it.
Toray Industries in Japan.
I read something on Golf WRX, that it is a Japanese materials standards logo, that the shaft meets an industry standard similar to the "UL" Underwriter's Laboratories logo.
