People dont seem to understand that a Main hand white attack is still affected by the dual-wield hit percentage. The ONLY time a main hand attack is subject to the yellow 8% hit is when it is charged up as a Heroic Strike.

Bloodthirst and both Whirlwind hits are subject to the 8% special hit cap. Anything yellow is.

So if all you're doing is standing there auto attacking, both of your weapons can miss if you arent hard capped, which you shouldnt be.