I would suggest making sure to keep your ElkRP2 software up to date and the M1XEP running the latest available firmware version. It is a good idea to make a copy of your ElKRP2 database which is the elkaccts2.mdb file and save to a separate location just in case you ever need a restore from a backup. Before updating the M1 or any other bus device it is a good idea to review the release notes to see if the update pertains to your system and either includes a new enhancement or corrects an issue. If the release doesn’t pertain to your system then I would not Update at this time . As you mentioned “If it isn’t Broken then Don’t Fix It” 🙂