My hunter is my 4th toon that I've been playing a lot lately. I prefer MM over Surv so I've been sticking with that. As I was gearing up, I have been gemming for Agi because I didn't really have any armor pen.
The question I have is when should one start to gem armor pen over agi? How much passive (from gear) ArP should one have before gemming the 8-12 slots of 20ArP gems?