First, thanks very much! Lots of great info in here. One clarification - you wrote this:
"If you are processing an event in the Publisher channel, events are coming out of eDirectory (Source) and going to your application (Destination).
"If you are processing an event in a rule in the Publisher channel, events are coming out of your application (Source) and going to eDirectory (Destination)."
If there is no typo in the above I am really misunderstanding something - isn't the subscriber channel what takes events from eDirectory source to the destination application?