Thanks! A useful page of information for sure. (This. That all this information about handling variables aggregated in a nicely laid out “single” page.)
Funny (kind of) side story. The technique of using a terminator, typically and recommended as ‘#’ became known as final, i.e., using ‘#’ as terminator prevented variable name collision. I often had to show my snippet of code (from real life example) that it wasn’t a final and perfect solution (e.g., &HOST# is good, but then someone decided they needed &HOST#2 ☹). Very happy to see the paragraph on this on that page as it addresses the behavior perfectly.
Thanks for the tip(s).