From DDO wiki
- Cooldown: 30 seconds
- Usage: Active, Toggled Stance
- Prerequisite: Dexterity 13+, base attack bonus of +1 or higher
While using Precision mode, you gain +5% to hit and reduce the target's fortification against your attacks by 25%.
- The feat description is currently not showing the 25% fortification bypass. 
- Since Update 14, using Precision no longer halves your damage.
- This stance is exclusive with Combat Expertise and Power Attack, you can only have one of the three active at one time.