Yes, I realised that after a bit of reading 
All in a safe place now.
I do wish I had an oscilloscope, but I'll have to just enjoy the audible experience when I get that far.
For sure. I'm going to try to add the boost converter to my existing setup first (and simplest for now) and see how that pans out. I'll update with the progress. Do you have two-way communication on yours? What solution have you used for that?