Reshafting ping eye 2 irons

I have a complete set of ping eye 2 irons and I’m going to remove the stiff high bend point Ping ZZlite shafts and replacing the 3-PW with True Temper Dyna Lite gold regular low bend point shafts, I’m 73 yrs old and have lost alot of distance the last 3 yrs ir so, lookin for pros or cons