You need to level your sub job, like your main job. It's annoying and it sucks, I'd rather not but you have to. Sub jobs do not gain experience as a sub, you have to equip it as your main to level it. Under leveld subs will cause you problems in the future and also, will keep you from getting a pt since most experienced players take an underleveled subs as a sign you don't care all that much and don't know all of the nooks and crannies of your job >.>If I see a whm with an underleveld sub I disban or not invite them. At lvl 60, you should not have an underleveled sub xD no excuses :P