I understand your concern but I don't think the AFCI will ease that concern as I haven't seen any proof that they work. Not a lab test but a real world arc that they detect. I know for sure they don't recognize a "glowing" connection, and from the videos I've seen they don't recognize a series arc either.Yes I realize a GFCI would have found the problems I described. My greater concern was and is arc faults in this older 1920's house. Electrified in the 1940's when REMC power became available.