On an unrelated note, do people find Summon Elemental or Demon of the First Circle More useful?

I am inclined to think Elemental save for the reduced summoning time.

Incidentally, why didn't Exalts summon and task bind all of the not particularly useful higher souls of the Yozi to hold up rocks in some manse in the middle of nowhere? Seems like that would have neutered the Yozi's ability to act in the world. You could even make an art gallery of it, a third circle with its seven souls around it in elaborate poses. The number of Yozi is finite, so this wouldn't take very long to do. They might have kept some demons, like that one that makes manses, free.

Heck, task bind all of them to one giant never ending make work project like creating MM and artifact components forever if you want them to at least be useful.