So I decided to try it with my lard soap and piped soap and everything else I have on the rack. Makes a huge difference, I planed the soda ash right off and also the side of my hand lol. I got a little too comfortable
I bought a planer - one that has a sliding bar to keep your hand from getting boo-boos like yours and the thing still scares the tar out of me! All it takes is a half second of inattention and wham - you're missing some skin!
Mine's sitting in the garage on a tall shelf gathering dust. For the most part, I'll live with the ash.