I have been experimenting with my Rex Ambassador to get a nick and scrape free shave. My beard is fine and thin and I need to shave maybe every three days. I was not getting what I wanted at the recommended 3-4 settings, so decided to use a new Dovo Platinum and set the razor at 1. Magic. I got a perfect shave, no sting from alum. For those unhappy with the Rex, the 1 setting may be the answer. A little fussy to get the blade in but once assembled, it is maybe better than my Gibbs.