I don't always remove the lock...I often leave my firelocks loaded for extended periods of time(longest stayed loaded for over 8 months-went off no problem)...Most of the time, I just plug touch-hole, fill with water, dump, swab with tow or patch and reload...about once every 5-6 months, I'll do a complete clean-hot water, remove lock, clean EVERYTHING and re-oil...I don't believe there is only one way to maintain your firelock-to each his own system...Mitch