Rifle shaft flexes

There are a lot of sellers at the moment selling golf irons with rifle shafts, these are stepless steel shafts and unlike standard shafts are not labeled up with standard flexes. Where a shaft such as dynamic gold has regular, stiff and extra stiff (x) flexes the rifles have numbers 5.0, 5.5, 6.0 etc and this is where the confusion begins. I have seen sellers selling 7.0 flexes as stiff, this is Phil Mickleson's shaft of choice and is far stiffer than that. according toRoyal Precissionscustomer services department5.5 is there stock stiff. I would advise anyone to either contact royal precission through there website or to get web-fit on the same site. The site will ask you for carry distance details with a 6 iron and work out your flex from this (just be honest with yourself, we all like to think we hit the ball further than we do and that includes me) Alternativley speak to your club pro. Just remember if a seller says that shafts are for someone who carries a 6 iron 200 yards he greatly reduces the number of potential buyers