Thanks Vinny. I can't ever imagine a situation where they'd have different programming, so I think it's best to do a master/slave configuration.

Am I correct to assume that once a light is turned into a slave, wifi is disabled and it will no longer appear on the network? All configuration and programming would be passed along by the master, then.

Does master/slave complicate firmware upgrades or make them easier? I.E. I upgrade one fixture and the other is upgraded automatically?