Can't get anything better than this. I would have used a 20% for an extra 2 attack if I had that much mesos to spare, but this is still godly.
Was browsing around in my Yellondian and found this sexy knuckle. Its for level 90 if you can't read it.
Used the DB Feather 2x, Card 2x, Event 2x, and a Ring Mule 1.5x. If HS stacks, it is possible to get 21.6x exp.