Following up to close this one out. After another attempt I was unable to get this driver swap approach to work. However I was able to use the Advanced send command functionality to send an association message to the scene controller. That worked like a charm first time. The thread where that method is discussed (with enough explanation of the zwave command classes to construct the message) is How to use the "Advanced" Send Z-Wave command that is in the driver page? - #6 by wayne.pirtle
Thanks for the suggestions.
