I've been using the Merkur Future and, more recently, it's Qshave clone. If you've had one of these you know that the adjustment scale ranges from 1-6 with stops at either end. But when you take the razor completely apart (for occasional deep cleanings), it's possible to hit the stop early on reassembling it, leaving the razor in a state that could be called a "7-12" range. Generally, you'll notice this right away - - if not visually, then certainly as soon as you use it. Except that, apparently, I didn't. So, for the past few months I've been shaving at a setting of 11! My shaves haven't been very good and I did nick myself mildly a couple of times, but I had chalked that all up to lazy technique. Problem now is that I'm having trouble going back to a regular setting! I've got it set on 6 and it feels like it's barely cutting. LOL!