This is a question I can't seem to find in any of the FAQs or explanations of the game.
Is it beneficial to have a weapon in your free hand? For instance, I have a pretty sweet wand, I enchanted it like 10 times, got really lucky and I've got 2 pretty sweet gems in it. So, for where I am in the game, this thing is kicking ass. But it's a one handed weapon, I have another hand free. My other one handed weapons are not as good; lesser wands or pistols, with DPS much lower and no good effects.
So my question is, is it still better to put SOMETHING into the other hand, or leave it empty? If the other hand is empty, will the good wand fire twice as often as if I had 2 weapons? Would be overall DPS be the average of the two, or the sum?
Also, does Dual-Wield affect this decision?