Bart you mentioned plasticD, but it sounded too stropping specific. Don't it happen both push and pull?

I haven't really followed up near enough: I've been doing some backstrokes over dried slurry paste; a "pasted" N.Asagi for stropping... I have a fear of backhoning too much from Verhoeven's semi-negative view of it.// It was debris eddying back on the edge that concerned him wasn't it? While the momentum of push stroke directs swarf away from the edge. ??