| Your subjob will ALWAYS be half of your main job, so if you were to change your main job to a Lvl 30 Dark Knight, then your subjob would be half of 30. So if you wanted warrior as your subjob it would be 15, and you would have all skills and qualities up to lvl 15, excluding super job ability.
Now say you wanted your lvl 30 monk job to be your subjob and you have as your main job Lvl. 30 Dark Knight, since your subjob can only be half as your main job you would look like this: Lvl 30 Dark Knight/Lvl 15 Monk. |