I have found out something very handy and i havent found it posted before (yes i searched), if you are using superman in a place where the monsters keep respawning at the same rate of killing, or there is enough to go around (Bird Island for example), and you are using autohunt make the speed 760 this speed keeps it up without it continually dropping after a cirtain point (we all hate that dont we?) so keep it at 760 and it should continue to kill for a very long time have fun and peace out