I just today received the hammer spring kit (along with the baffle kit) from Hillair. I also received all of the components to check my regulator pressures. My question is, before installing the hammer and spring, I would like to smooth out the chamber (within which the hammer slides). In my mind, I was thinking I would use polishing compound (Cloverleaf to be exact) and a swab, such as a 12 or 20 gauge cleaning tip on the end of a cordless drill. Any thoughts or other methods that you would recommend? I don’t want to remove too much material, I just want to smooth out the bolt and hammer action. I own several small cylinder hones that would work, but I don’t want to mess with clearances. Hajimoto, what did you do to polish the chamber? A piece of 3M Scotch-Brite on an arbor would probably work as well.Thanks to everyone in advance.