The way I understand it, the MG attack doesn't proc poisons. It is simply extra damage that has a chance to proc energy. Where it actually comes from is anyone's guess. It does MH damage, but has a chance to proc energy like an OH, but doesn't poison like either hand.

It's like the plot of the Lord of the Rings in that it doesn't hold up to much analysis. "Why doesn't MG proc poisons" is like "why didn't they just fly the eagles to Mordor in the first place".

The answer is "because that's the way the author (designer) did it".

One does not simply fly into Mordor. ;)

At least, not while Sauron is still alive...

I've seen this misunderstanding many times, so maybe posting it here might clear it up.

"it would be pretty stupid to have a mastery called main gauche and not use that main gauche =P."

A main gauche is a parrying dagger. You would use the main gauche to knock the other person's blade out of the way, therefore leaving an opening for you to hit them with your main weapon. The change makes it make sense now: you get a main hand attack (or mh damage, whatever). What it used to be, giving an extra off hand attack, made no sense because you weren't trying to hit someone with your main gauche, you were trying to create an opening with it.

The common answer to the "flight on eagles" question would be "Because Sauron would've probably anticipated the direct attack at set off the Nazgul on drakes much earlier", while "stealth ops hobbits" have an ability to sneak in unnoticed.

Thanks for clearing that up, Jeremy.