Ok I asked an imm about this, and they thought the same as me so I brought it here. I was under the impression that daggers of similar weights could be dual wielded. Here are three daggers I tried with, and my results. I could dual wield any one of them with a sword that wasn twice as heavy as the daggers (daggers 50% of the sword weight), and that worked. But for some reason I can't dual wield daggers. Am I mistaken in thinking you can dual wield daggers of similar weights? (sorry to be so verbose)

You stop using a blessed dagger named 'Heartseeker'.
You wield the diamond dagger named 'Light of Redemption'.
The diamond dagger named 'Light of Redemption' feels like a part of you!

You stop using the diamond dagger named 'Light of Redemption'.
You wield a dagger named 'Feathered Death'.
A dagger named 'Feathered Death' feels like a part of you!


You stop using a dagger named 'Feathered Death'.
You wield a blessed dagger named 'Heartseeker'.
A blessed dagger named 'Heartseeker' feels like a part of you!

>Ok I asked an imm about this, and they thought the same as me
>so I brought it here. I was under the impression that daggers
>of similar weights could be dual wielded. Here are three
>daggers I tried with, and my results. I could dual wield any
>one of them with a sword that wasn twice as heavy as the
>daggers (daggers 50% of the sword weight), and that worked.
>But for some reason I can't dual wield daggers. Am I mistaken
>in thinking you can dual wield daggers of similar weights?
>(sorry to be so verbose)

There were some math issues based on pounds, but not ounces that I've fixed and these are closer to reality.