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?