I am interested in getting my first fitted irons and am looking at 716 AP1 irons. I am a legitimate 12-14 Handicap and am 54 years old. I am currently swinging png I3 irons that are 15+ years old. I want to know what I can expect swinging the 716 AP1 irons in improved performance. I'm also wondering what kind of shafts I should be looking at in these iron. I have been swinging a regular flex iron but wonder what type of shaft I should be looking at in my irons since I anticipate these irons lasting me at least another 10 years. Should I be looking at senior shafts at this point? Graphite vs. Iron? Should I be looking at a full set of irons? Currently really only swing a Lob, Sand, Wedge, 9-6 Irons with my png I3 set. I use a Utility 5, Utility 4, 7 Wood, 4 Wood, and Swing a png G30 Driver. I hit my Lob Wedge 30-50, Sand Wedge 50-80 Regular Wedge 80-105, 9 Iron 105-125, 8 Iron 125-140, 7 Iron 140-150, Utility 5 150-165, Utility 4 165-175, 7 Wood 175-185, 4 Wood 185-200, Driver 225-250. Again, let me know the advantages of being fitted for clubs, how many irons I should be looking at giving my current difficulties with swinging an iron above a 6 iron and getting through the ball, and what kind of shaft I should be looking at to maximize performance given my profile??? I'm also interesting in Vokey Wedges and would like to hear about performance with these wedges.