Hi Randy; I don't hang around here that much any more but enjoy seeing your beautiful anemone. Couple of comments:
1) In the wild, haddonis (and giganteas and magnificas) that I have observed tend to deflate when the sun sets, then reinflate about an hour or so afterwards. So daily deflation when your lights go off does not in itself sound like an issue.
2) Everything that I have seen in your photos looks good so far. The inflation/deflation cycle should become less dramatic over time, and the mouth should become more and more tightly closed.
3) I have not seen a haddoni ever settle down on top of a rock pile. As others have noted, they seem happiest in sand, with their foot buried substantially beneath a large rock. They will move rocks if you aren't careful. Sadly, they seem to prioritize "foot security" over lighting - i.e. they will move into a dark area of your tank if they can't find the right area to burrow into, and will bleach from lack of lighting if you aren't careful. In many reef tanks, this means they will burrow into/behind your primary rock pile and "get lost". I would prioritize finding a nice place for him in the sand before he sneaks back into your rocks - because he will keep sliding deeper into the rock pile and you will lose him.
Love the photos!