Not stirring, but a couple points.
There are a lot of Elk users here and a lot of DIY'ers.
Only by being active in this community, is it any fun.
If the people with imperfect knowledge were excluded, I'd be out.
There are many, many knowledgeable people here, some not so. I really don't think anyone is or can be a master of all.
Also,
I think most of this thread related to an Elk panel, or at least there were a lot of Elk savvy people offering advice. Some things are different with Elk than other panels.
The Elk can actually handle 4 states, not just three.
I don't think the Elk finds it any easier to correctly identify any one state over the other.
With the ELK, it is indeed called an EOLR - "End of line resistor".
The resistor at the end of line is the only sure way to supervise the wiring from the panel to the switch.