@Davïd Done, and I'm glad my attention was drawn back to this question of mine. I took some time to examine your answer more carefully. It was very well done, and I wish I had accepted it sooner (except I forgot about it among all the busy-ness of life).
Hello chat people. Im a little unsure of protocols on stacks exchanges. Do comments become discussions? Or do you you just say your piece and leave it at that? What if a question topic opens related matters. Do you expand your thoughts in the comment area, or do you start another question and hope readers connect the two?
ps. Where am I? Is the library a temporary chat room or do our posts stick here forever? (lol)