Maybe someone more qualified should answer, but I'm fairly certain I understand how it works. So the main DR is the one that is used if nothing else is specified. So if an armor have 15 DR but (pierce 5) then 15 is used for all dmg except for piercing dmg.
A question about body armor's DR
in Pillars of Eternity: General Discussion (NO SPOILERS)
Posted
Maybe someone more qualified should answer, but I'm fairly certain I understand how it works. So the main DR is the one that is used if nothing else is specified. So if an armor have 15 DR but (pierce 5) then 15 is used for all dmg except for piercing dmg.