I just got a mid 50's schick injector from the bay. Prior to this I've been using a mercur slant with derby blades. I wanted to put the schick thru it's paces by doing the worst possible situation. Two days growth with little or no preshave prep. After three passes with proraso cream I had a little irritation and one or two weepers. These I attribute to using a new blade and an unfamiliar razor. I can't wait to use it for a proper shave.