Thank you, and happy holidays!
Another use for the new conditions: I added the same "is device connected?" template to add a new action to my send-to-device chain.
If the device is connected, it'll send the book directly there. Though it'll still appear on the list until I figure out the "if device is not connected" template.
EDIT: I kinda worked around this by setting up a "sync lists if device is connected" action. Clumsy but it works.