I got into DE shaving to combat ingrown hairs and razor burn on my neck. I read that the problem was my multiblade razor, which lifted the hairs and cut below the skin. I switched to DE, and my problem went away.
However, I read that people get smoother shaves from DE shaving than multiblade.
So do multiblade razors cause ingrown hairs because they shave too close - below the skin - or is it some other problem? If it's because they shave too close, shouldn't they have an upside of exceptionally smooth shaves?