With short sharp stubble it is easy to shave by feel.I tend to avoid razor shaving in hot / sweaty weather, sweating into razorburn is bad, stings and raises the risk of infection.I knew some guys that would lightly powder the dome to help keep it dry and not so shiny, never worked for me as the first place I sweat is my scalp.(Was in texas mid-summer in the military, so sweating was a way of life,