What Zyrks are fellow lancers using?
End, Impact, Attk Speed?

Damage reduction.

I hear that were is an issue with the math on how they are calculated. Instead of it being combined, its additive or something. I'd like to see a test done on it.

Well there is the 4% pvp reduction Zyrks from Agnitor. But since I don't have those, I have been stacking crit resist ones lately and have been liking them.

4% damage reduc or impact for me =)