I've been using 7AM blades on my disposable straight edge, while I wait for my razor to arrive in the mail. I was previously using another blade, but I had these laying around and thought I'd try them. I noticed that they were a lot harsher than the other blades I used, to the point where they scraped my skin at any angle I tried, I applied plenty of well lathered shaving soap, and even tried some home made preshave oil, but it didn't work.
Have any of you used these blades and gotten the same results? I even tried running a fresh blade over my arm hair, and it just yanked them out.