Hm...I often use the Schick M on a setting of 3-5, which is supremely comfort for me and can fairly easily give me BBS. It sounds like the Parker may have trouble doing that though. I’m torn now lol.For what it's worth, here's my opinion on the Parker Adjustable Injector. It is a mild razor which is good for those who only use the Schick Adjustables on the lower settings.