CLUMPING POLISH & COMPOUND
Yes, compound will clump when added to the Corncob or Walnut. Just stir with a wooden paint stick like your trying to cut it. Scrape the sides and bottom to break up the clumps as it is running. In just a few mins it will break up.
Adding the paste does add moisture, running without the cover for an hour or 2 will dry it out.
Adding a few pieces of brass seems to keep the blades from sitting on the bottom. Right now I have 15 or 20, 9mm in with 3 blades. The brass rolls them up the sides and through the medium.
Marty