When I was "inventing" my ultralight weight backpackers 3x3 card strop I did sets as you describe. It was so short turning each stroke was a bother.

I didn't grow a beard, so it worked. The only ill effect was using CrO everyday for 3 months.

I never honed that way , but I can speculate. I would be mindful of turning up a "large" bur, so that when you turn the blade over make a very deliberate and light stroke, otherwise you might possibly bend it or shred it off, rather than carefully cutting it off.