I am experimenting with different shafts in a TS3 five iron head.

Currently I have a Fujikura Vista Pro 60i R flex shaft in the 5 iron.  I hit it OK.

It was suggested to try the Maltby MPF Pro Series iron shafts

I am 3B2M using the MPF ratings.

The MPF Pro SERIES IRONS, R flex is a 3B3M.

Is there going to be a noticable difference going to this shaft?

MWB1957 Unselected an answer 42 minutes ago