I think he means for the weapon the you are gonna switch to when you switch to caster in combat. I don't know his post doesn't make alot of since and he doesn't understand ferals all that well me thinks.

there are some fast 2H weapons, and 2h Fury out-dps Arms-warrior anytime.

Its true (I am a level 60 rogue).

The way it works is that melee attacks have a 5% chance to miss. Dual wield has an additional 19% penalty that you can never get rid of. So, with dual wield, you have a 24% chance to miss, and it can never go lower then 19% chance to miss due to the dual wield penalty, so you have an effective cap of +5% to hit. However, more then 5% to hit is needed to get to the 19% minimum miss rate against creatures that are above level 60 or have greater than 300 defense. Note that not very much more +hit% is needed for these creatures as the miss rate goes up by only a small amount per level.

This makes the rogue talent that boosts hit percentages of opening moves worthless if you have precision, which is the talent you mentioned that gives rogues 5% increased chance to hit.

Dodges and parries are a completly seperate thing, so you can (and almost all rogues will) have 100% chance to hit with your opening moves, yet they can still be parried or dodged.

Hope this clears things up.