Was hoping to get clarification on how I should be gemming for PVE.
In this guide they state that I should gem strength until i achieve 50-60% "Passive" armor pen.
What is passive armor pen? Where in my class skills/spec is that? Currently I'm gemmed mostly for armor pen. If I replace on with strength my armor pen in the character window goes down. Makes sense I guess.
I guess I'm confused about how much strength (if any) I should be gemming for.
Thank you.

