I bought a set of irons off internet awhile back and the shafts are peculiar in that they say KBS Tour by fst? There is no weight on the badge just an “R” for regular flex. I found a short reference to KBS by fst on the net but could not find any link to determine the weight of these shafts and if they are true KBS TOUR quality?

Is anyone familiar with these shafts? Where can I find specs?

Thanks

Lavaman