To answer the OP... Yes, the appropriate primer pocket uniformer can also be used to clean the primer pockets after decapping instead of the primer pocket cleaners (brushes). When I'm processing fired brass, I first decap with the Lee Universal Decapping Die, then hit the primer pocket with the uniformer rotating in the RCBS Case Prep Center, then toss the brass into a box ready for the vibrating case cleaner. Cleaning the primer pocket only takes a couple of seconds for each case this way, but removes any problem with seating a new primer. The uniformer cutters are made from tungsten carbide, so I doubt scraping out any primer residue will harm them.