The last post in this thread is corect up to a point. There is some subtlety on which one you equip first.
http://gaming.stackexchange.com/questio ... n-diablo-2This thread explains the rest. (I couldn't find the original posting that provides a cleaner explanation...google and all other search engines now suck ass at finding things).
http://www.lurkerlounge.com/forums/thread-9324.htmlBe careful on differentiating between left side and left hand...(right hand is glove side, left hand is boot side, left side is glove side, and right side is boot side i think from a glance).
Main thing, if you don't weapon switch, put the fastest weapon on the boot side. If you reenter a game, die, or weapon switch, take both off, and reequip bootside weapon first.
Due to breakpoints, sometimes it won't change anything, other times you will get a noticeable boost...the more different the weapon speeds then more noticeable the effect is.
This works the same as frenzy, double swing, and dual wielding sins. WW is close to the same but not quite.
This attack speed calculator will help, but notice that weapon speeds are not always the same as on HU, you need to visit the database (under white items) to get those, and then pick a comparable weapon speed on that calculator
http://diablo2.ingame.de/tips/calcs/wea ... ng=english