I am 68 and the longest iron in my bag is a 4 iron with a Stiff shaft. My carry distance with a 7 iron is 145 yards. I am thinking of getting a new set of irons with a 5 iron as the longest iron in the bag with a regular shaft or even softer. I would like to hear input from those whose bag is similar to what I am thinking. Would a softer shaft help me gain a few yards ?