Ischiavo, yes there are a lot of methods. Kal has one method, mux uses the brewewshardware method (pretty slick looking btw). That's kinda of where my question is coming from. There are a lot of methods that work, and work well. But is one method safer by its design?
I agree with your point on grounding.
As I have yet to start my "electric" project, I'm looking for the best way.
Ease/difficulty or $ not necessarily what I'm looking for. That informed decision will come later.