You may also want to look at NickelMenu so you can save the unplug/plugin step. Just use NickelMenu to trigger a USB connect and save some wear and tear on the USB cable/port.
I agree with not unplugging the cable until the connected screen disappears. I was rather surprised how long Windows can take to flush the write buffer to the device after the eject is done.
So the sequence becomes:
- Eject, but don't pull the cable
- Wait until the books have been imported and the home screen is displayed
- Tap NickelMenu's icon and then the USB Connect menu item
- Wait until all the calibre jobs have been finished
- Eject and wait until back to the home screen
- Unplug the cable