I was at a local golf store today and they had the Matrix Radix S7 in a Bio Cell + Fairway wood.
I am currently looking for an upgraded shaft for the bio cell fairway.
How do I identify the flex of this shaft?
I couldnt see anything marked on it to suggest anything. I thought the 7 might have been a reference but I saw that there is Reg and up in the 7 and its not a key / code.
Any help would be greatly appreciated.