one wire Alternator and voltage regulator question

The readings in the left column tell the story. Does it ever go above 14-14.5 max? if not "you are good." It surely is a "one wire."

NOW what do you have for a charging path to the battery? You do NOT want to depend on factory wiring for a "one wire" it needs to be up--gauged. Plus if the old ammeter wiring is in place (bulkhead connector) that can be a big problem
I haven't seen 14 since the alternator swap so i think it's ok. I'd hate to admit to YOU what's going on with the charging path. Some of the path has been replaced with larger wire and a 30 amp fuse. Anyway I'll endeavor to upgrade the rest of it sooner than later.
thanks for taking the time....