Z-Wave Sniffing, Zniffing And You: A Guide To Pulling Packets From Thin Air

I am curious about something @csteele mentioned in another thread:

I do have Zniffer software and Silicon Labs stick. My MS6's are terrible repeaters because they communicate to the hub via 9.6. I have several devices that a zwave repair routed through them so via Zniffer or other tools can I update the route to move those devices to another router? If yes any tips or tricks on how to do this?