Impressive work as always, @chrissyhroberts. Thanks for sharing!
It seems like we can make some easy (correct me if I'm wrong, @ggalmazor) improvements to Briefcase to reduce the work you have to do with OBD.
The easiest is if -sfl and -sfd can persist their cursors to the storage directory that would remove the need to re-pull if you move the data between machine. Correct?