It was a tough choice to make, when to use 7. Use it first and people more than likely get it within 2. Thats no fun. Middle makes it seem awkward and makes other meta clues harder to word.
It was intentionally hard on purpose, as I wanted to do one that involved thinking about the clues differently. Some people were starting to understand how to think of the clues, especially the CHA one, but didn't put it all together. I kind of WANTED it to be an "... ohhhhhh" thing. Now you know how the Xi puzzles were to solve!
Oh well. I expected the fire, honestly<G> No biggie<G>