Personally I believe Im in the midgame.
Total Power: 35439 (Sol and Ryo-Oh are subs (Lvl 60), Fire Mammon isn't maxed yet, Svarog isnt awakened, Achilles equipped (300 SP from Heracles))
Weapon Grid: ATK: 15146, HP: 1070 (2 non fire weapons but they have the highest ATK/HP values, 4 SR fire weapons 3 of which are they raid spears)
Eidolon Grid: ATK: 6833, HP: 2757
i am very sorry, but that is hardly considered "midgame"
me myself is probably "midgame"

Also I'd happily not take Uriel
aha. Happily. Well, Fire Amon claps at your words.