From WoWWiki

Dual wielding any weapon also results in a reduced miss chance I don't play any characters that dual weild so I don't know, but this should probably be an increased miss chance. Any know for certain? The Final Dream 18:10, 16 Jan 2006 (EST)

According to http://www.wowwiki.com/Combat "Dual-wielding also gives a 24% base miss rate (compared to 5% for wielding a single weapon)." The DPS math that follows makes it clear that you are indeed more likely to miss with a weapon in each hand. --Sy1van 16:59, 1 Feb 2006 (EST)

Does the increased miss chance only apply to your offhand, or also to your main hand? CJ 07:35, 14 Feb 2006 (EST)

It applies to both hands unfortunatly. Although the scaling seems odd. at base 24% miss rate, you will notice A LOT of misses, so many you will probibly want to stop. With moderate +hit gear, say for example +7 in total, you seem to hit a lot more often than should be correct. Not sure why. GRAUUL SMASH 06 April 2006

Shaman using +6 hit talent, and rune of the guard. gives +7 seems to work ok.  - CJ talk / cont  07:07, 18 January 2007 (EST)

40-80

The 80% mh, and 40% oh values are these correct? i always thought it was 100% mh, 50% oh. though it would make sense i guess.  - CJ talk / cont  07:07, 18 January 2007 (EST)

--- I've tested these values and updated them. I noticed that whoever had posted the 80-40 had done so over 2 years ago. I suspect these were numbers from beta, but I don't know for sure. Anyways, it is 100/50, and not 80-40. User:Kbobk/Sig 03:11, 7 February 2007 (EST)