Weapon mastery is going to be changed and give us 4 weapon expertise at max rank.
The patch notes say that weapon expertise will reduce a mobs chance to dodge and parry by .25% for each point (not rating). So max rank in weapon mastery will net a 1% decrease in dodge for DPS warriors.
It has been said before in other threads in this forum that it will grant 4% reduction to dodge. Where did this other information come from? Was it heresay? Is there a blue post supporting it?