Currently when leveling battle jobs the leves at 50-58 give very little exp.
lv - exp
lv50 ~14000
lv52 ~15000
lv54 ~18000
lv56 ~21000
lv58 ~28000

Something should be done the tradecraft and fieldcraft leves give about 10x this amount.

Leveling battle classes is already very hard after the first there is almost no reason to do battle leves when fates are giving so much more exp then this and faster to do.

SE I would suggest increase the battle leve exp by 10x for both normal and temple leves on battle jobs. This would actually make them worth doing.