I have set up Sun2 specifically to implement customisations in my household for the mountains to the west. I performed some quick map measurements and placed some values that I thought would reflect the mountain's positions. I noticed that the "Dusk" and "Setting" sensors correctly adjusted their times relative to HA's built-in sun values.

However, the "Phase" sensor still seems to change state later in the evening, matching the HA's built-in sun phase.

I have now modified my automations to do checks for whether "now()" is after the value of the "Setting" sensor (and triggered it every minute) but ideally I'd prefer to just use the "Phase" sensor (or a second, modified sensor) and its state-change event.