Hi Daniel,
An oscillator makes sense, since the verbose mode is set back to default once the TCP/IP connection was dropped and is reestablished.
EDID: Another argument pro oscillator: TCP/IP connection is closed from the DMP if no command is sent for (default) 300 seconds.
When setting up volume control I always test with audio signal present to ensure that the ramp is not too slow and not too fast.
I am happy to hear that the module helps you controlling the 9 units.
Best regards
Crestronfreak55