Ah that's too bad. I have thick hair as well but I guess my skin isn't too sensitive. It also seems like it's a sharper shave than the multiblades, but maybe that's because I didn't use to change them enough bc they were so expensive. At least it's easier to get hair out of it when it's just one blade.

I used a single blade disposable once in a pinch a long time ago and I guess wasn't careful enough and cut pretty deeply into my cheek.