Its not the loose garnets sloshing around that really does the cutting, its the garnets in the matrix. The loose stuff in the slurry just enhances things. I would think if you pasted a strop with garnet slurry they would be too loose to do any real work or damage. I would think its different than diamand paste which is a manufactured item with diamonds in suspension or chrome oxide which is a homogenious material. It would probably be like stropping on plain leather with steroids. You might get some extra polishing. Sounds interesting, keep us informed.