I have a number of J frames in 38 and 357. All centennial models with no lock. I carry one airweight daily in weak hand side pocket with a kydex pocket holster. Other times carry J frame loose in coat pocket. I keep the inside of my pockets clean and use tape to remove lint, etc. Still I worry about foreign material getting inside the mechanism. I realize with centennial model and no lock few places for material to enter. Still do you recommend taking off side plate and cleaning with Qtips on some schedule? If so how frequently should this be done, esp for centennials carried daily or near daily?