There are many things that have helped revolutionize golf but game improvement irons are near the top of that esteemed list. Game Improvement Irons vs Players Irons There used to be no fine line between players irons and game improvement irons.Players irons were small and sharp looking, shiny and shots felt soft off the face (if you hit them in the sweet spot.) Game improvement irons were large and clunky but easier to hit.here are many things that have helped revolutionize golf but game improvement irons are near the top of that esteemed list. Game Improvement Irons vs Players Irons There used to be no fine line between players irons and game improvement irons.