I have had this problem even long before I converted to straights razors. If I shave two days in a row, the second day's shave is destined to be a painful one with bad razor burn and even small nicks. I can even tell before i touch a blade to my face. If I just rub the back of my fingers against the gain of my stubble, my skin feels extra sensitive on the painful/irritated side of the sensitive spectrum, especially my neck and along my jaw ling where the grain changes direction. Anyone else experience this and have a solution besides going 2 or three days between shaves?