Yeah I'm using auto setup, this is how my squads look like: http://prntscr.com/av69ux

So, I shouldn't continue clearing area 11 onwards? I did it for the better raid bosses

edit: I played around a bit, I built two more squad setups

completely random: http://prntscr.com/av6ino
elemental based: http://prntscr.com/av6p3w

Any suggestions?