First a big thank you to Bobby D for helping me through getting my new/old C-7 functional when I was just about certain it was bricked.
Second, sometimes little things make a huge difference, thank you to the development team for implementing the file name prefix when downloading backup files! I only just got the second hub working (see above) and was creating sub-directories and trying to make sure I didn't put the wrong backup file in the wrong place, etc. This is a great, if simple, enhancement!