I am currently using Callaway irons. I love them, but they are about 10 years old now. How often should you update your irons? – Brandon
Iron technology has not changed very much when you compare it to the changes that have been made over the last 15-20 years in drivers. Since your irons were introduced, few significant changes have been made to change the overall performance since then.
There is, however, the overriding “Placebo Effect” that comes into play when you buy something new; whether technically better or not, you feel good about the new club, and that feeling gives you confidence. This effect will influence your performance significantly more than the change in technology of the new design.
In its simplest form, an iron is a piece of metal on the end of a stick. This piece of metal has changed in shape over the years to position its center of gravity (c.g.) low and in the center of the face.
Also, the material has been distributed to the perimeter of the head to increase the MOI (forgiveness factor). The c.g. has been moved as far toward the back of the head as possible. The sole has also increased in size to create more bounce and more forgiveness of mistakes. All of these things have been incorporated into the design of irons for at least 10 years or more, with only minor tweaks to the design since then, such as springlike effect in the face which will increase the distance of the iron, but not significantly. After all, if your 7 iron doesn’t go far enough, I suggest you take out your 6 iron.
Bottom line is that there have been many changes, but they’re of small importance when it comes to a performance improvement that we can actually detect. Having said this, we must admit that there is nothing like a brand new set of irons in our bag for a new season. Be careful, however, not to let your old set know that you’re thinking about replacing them, especially if you’ve made good friends of them and they generally do what they are told.