That's pretty nice!... I've been getting 1k a mob and 120k or so XP on my Dragoon...

But the thing is, most of the exp gain comes from the bonus exp at the end. Without that, then I'm only netting 1/3rd level after 40-60 minutes. You wouldn't be doing too much better either.

OTOH, if you manage to get dungeon closer to your actual level, you get the same bonus EXP, but also with a much better exp per minute rate.