I first deprime the cases and run them through the ultra sonic cleaner, then lube, size, trim and chamfer then they go into the tumbler just to polish. My Pistol cases I use carbide dies so size and deprime, trim and chamfer, bell the mouths and then into the ultra sonic cleaner, then finish up in the tumbler again just for polishing. I use simple green, and then rinse with boiling water and spread them out on a rag, the heat from the water aids the drying process.