I shoot several hooked breech rifles and sxs shotguns. My cleaning protocol has been to remove the barrel(s) for cleaning and then a damp towel wipe down hammer/lock/tang areas otherwise leaving them in place. I pulled the lock plates on my 12ga Pedersoli sxs for the first time just to have a look-see and was dismayed to see some rust built up. I am guessing I should pull these parts, and maybe even all metal, off and out of the stock for routine internal cleaning and oiling. My question is how often? Do you folks do it every cleaning? At the end of the season before putting the gun up? Few times a year regardless?