Hi, I wouldn't try dry exfoliate as it doesn't do any good for my skin.
I have multiple skin problems, so have to be very careful what I do.
Is your skin is fine and has no problems, go for it and try it. Otherwise, do what is good for your own skin. We're all different and have different needs. 😊

Irishwife I did that on my husbands back and the next morning his whole back are full of little bumps His back was sore for a few weeks

Sounds rather painful to me, don’t think I’d try it.

It was recommended by a naturopath many years ago, but Iit made my arms ache from the repetitive movement.