Joe,
I just want to say how amazing this combination of plugins is. I found the whole MQTT topic quite daunting but actually I have gone from Zero, to a plugin that builds on your MQTT plugin in record time, such that I could focus on the bits that needed attention (decoding the smart meter data standards) rather than having to do any of the heavy lifting. I will prepare some notes that may stop you getting (in my case) stupid questions and help others trying to get their head around this, and how they could consume it.
Regards,
Neil