Looking to switch to graphite shafts in my irons.  My swing is more of a sweeper than a digger.  Typically hit a high ball. Looking at the senior flex.  My goal is to get about 7-10 yards on each of my irons.  Not sure of the advantages/disadvantages between the MPF series iron shafts versus the Kuro Kage Black 2nd Gen.  Can you offer any guidance?