I was in antique store last weekend, looking for a gift for SWMBO, when I spotted a de razor in a original gillette plastic case. It was pretty dirty but seemed like mostly old soap scum, so for $7 I figured why not. Once I got it home, after a long soak in hot water and dish soap, along with some elbow grease and a toothbrush, it was shining like the day it left the Gillette factory. It turned out to be a 1970 "Black Beauty" Super Adjustable, date code P-3. I shaved with it last night, and I did get a BBS shave, but not without some blood on my neck...it just felt really sharp (not sure how else to describe it). I really like the feel of this razor, and it may just be poor technique, but how big a difference does the setting make? I shaved with mine on 4 but went to 2 after the first pass. I use a Gillette tech mostly, so could that be part of it? Also, what setting do you guys use on your adjustables? Thanks in advance for any advice