I agree ^ the gen 4s recoil is greatly reduced with the new guide rod spring, not to mention they arent plastic anymore! all metal guide rod, much longer service life..In the end, i would say shoot what is comfortable to you. try some different guns out, and whichever feels best in your hands. Im not a fan of the springfields due to the grip safety...I really dont prefer safteys because it tends to make people shy away from really checking a firearm each time they pick one up.