The current burst cap is 8,625m, so yes, that does raise some questions
I mean, considering how there's zero Exceeds in the game so far - at least if you play legit - that means he needed to do 1.2m burst per Hime. Out of which 200k is above the cap, so he was doing 2m over the 1m cap. 3m burst per Hime.
I don't suppose he has hacked himself an Exceed weapon?
The other alternative is a Hime who can go beyond the cap, but... hmm. Did we have any of those yet? Metatron Awakening? Not here. Uriel Awakening? Not here.I said "mine", there. 120-130% are my grids, depending on element.