well im a lv113
and so i think if u wanna get osm slotted/regular
you should keep doing patren patren instead of finishing it
cause u get good exp and good drops
on thee other hand if finish u get title
and if ur lucky wen u kill the last boss (patren)
u can get an eof+7,Eog+7,Eos+7
tat is if ur lucky wen ur bout to kill him keep ur hands crossed