William Easson started following What Is the Distance Gain From Stiff to Regular Shaft?
I'm 77 and used stiff shafts throughout for over 60 years. I switched to regular on professional advice but found I hit my irons "fat" and gained nothing in distance. I have returned to stiff (DG S300 in the irons and Aldila S in the woods) and hit the ball MUCH better. In any event, distance is only one factor in good golf.