I currently game a set of Titleist AP3's with an AP1 4 Iron as the long iron. These were purchase in 2017 and I average close to 75 rounds per year (with additional time spent on the range). A couple of years ago I had an issue where the 8 iron head flew off during play. I recall I had another iron that had a loos head as well. I think it was the 7 iron. I cleaned them both up and epoxied them back onto the shafts. While playing yesterday, I noticed the ferrule on the 4 iron was separated from the head of the club. After closer inspection at home I found it was indeed the head that came loose. With the shaft in the vice and just using my hands, I managed to wiggle the head off the shaft which means it was not going to be long before it came off on it's own. I have re-installed it and will be able to put it back in play after the 24 hour set time for the epoxy. I am curious if I am alone in this, or if others are experiencing this problem... I know the clubs are almost 5 years old now, but I know friends with clubs that they are playing with after 12 years and longer without any issues... I treat my clubs well. They get wiped down after every shot, and are never left in the trunk after my round. They come home with me and are put into the front hallway as soon as I get home so it is not like they are left to cook out in the sun... Any thoughts ??? Any suggestions ???