Gave up on my DH soloing Nightmare, so I made a monk to try something different. I'm level 10 at the moment, and my DPS using only one claw is 34.03. If I then equip an off-hand weapon, my DPS drops to ~30. I'm curious as to why that is.
Pun is top 10 of all time. You can tell he ate a lot of mc's. -- Moogle Hunter
Huh. That is weird. If both of the weapons have the same WDPS, then the ADPS should be the same, if not better. As far as I know, equipping two weapons at the same time increases attack speed by 15%, and the passive boost to dexterity that you should get if the secondary has some +DEX on it should rocket you right past what you have right now...
The only thing I can think of is that you equipped a weapon with less damage than the one you have as your main right now, and that it's causing the off-hand strike to affect your overall DPS.