My first vintage razor, the '62 Slim, with a Rapira Swedish Supersteel blade (3). I discovered today that settings 5, then 4, then 3 work much better for me on a 48-hour beard than does 5-3-1; the 1 is not aggressive enough. Recently I have not looked forward to my shaves with the Slim, which is very odd. Now I think I know why!