I change razors daily. Before this month I would get irritation after a few days of continuously using my New. So I would go to a milder razor for a few days. Since I made a mental commitment to use this razor for the entire month , I payed close attention to technique again. Something I had gotten away from. Well several weeks into using my New and I was rewarded with some of my best shaves with no irritation. Makes me wonder if changing my razor every day is a good idea. Also makes me wonder why do I need those other razors.