I had the plastic one used in an exterior location, which isn't a good idea – was always finicky and difficult. The metal one seems to be more reliable. I wouldn't trust it somewhere I cared greatly about security, but combination locks aren't generally great in those cases. One of the difficult parts is telling anyone else how to use it. Up-down-left-left-right, but only after you pushed it in to reset it? With a st…
> With a standard combination lock all I have to tell someone is the combination I don't think that's fair. The standard combination lock interface is well-known, not intuitive. "6-38-16" is brief, but it assumes the listener already knows to translate that to "turn right 360 degrees, then right 6, left 38, right 16". This lock doesn't seem any worse in that regard.
Indeed. Over in this part of the world, I have never actually seen one. I once looked them up on the Internet just to figure out how to use one, but had by now forgotten about the starting reset.