[Yaolin]

The "DPS Rating" for the offhand never changes after lvl 30 because all damage caps are removed and there is no damage bonus for the offhand. Damage caps are the weapon damage*2 + some attack modifier (which grows as you level.) LvL 1-9 = 10 Damage Weapon, LvL 10-19 = 14 damage weapon, LvL 20-29 = 30 Damage Weapon. I.E. if you are using a Wu's Quivering staff(23/28 2HB) at lvl 19 the weapon will act like a 14/28 until LvL 20 when it will act as a 23/28.