To make a progress, one needs to improve himself constantly, similarly, every golf brand needs to do the same thing to keep up with the step. Callway is a good example to show it, when they first launched the AP series irons in 2007, it triggered the buzz, and then they made another step forward in iron design recently, that's the new 712 line of AP irons.
Therein, the Titleist 712 AP2 Irons are one of the series, to some extent, they still remain some features of the previous AP irons, such as the dual cavity design and multi-material construction, though there are other improvements aside from the additional forgiveness and faster ball speeds. Moreover, the AP2 incorporates a new tour-inspired square toe profile as well as a reduction in sole width in the short irons, which improves how the iron interacts with the turf.
In other words, the AP2 712 irons have a more square profile than before, a feature specifically requested by Titleist's Tour players. A forged carbon steel head is aided by a high-density tungsten weight, creating increased playability. Titleist wanted to improve distance control and achieve a more consistent ball speed with the 712 AP2 irons. This was done by increasing the MOI by 7%, without impacting workability or control. A dual cavity design pushes weight to the perimeter for playability without losing the ability to shape shots.
Nonetheless, the wholesale Titleist 712 AP2 Irons for sale are mainly designed for low handicappers. So they certainly are very easy clubs to hit. At address the offset is larger than in the Titleist AP1 Irons but not so much that it will put better players off. The head size is also larger and inspires a lot of confidence at address withouth appearing too chunky. The 712 AP2s are a joy to hit and the True Temper Dynamic XP shaft is light and lovely to use.