I cannot shave ATG on the upper lip with a new Fusion cartridge or a new feather blade in a DE. A new feather pro in my AC DX can shave ATG but not so comfortably. With a well-honed straight razor, I shave my upper lip ATG almost every day. I may only get 2 or 3 shaves from that blade before it needs touching up; however, I can shave even my toughest whiskers comfortably against the grain with a well-honed blade.