Can someone PLEASE explain how my Monk is barely hitting 200 in Turn 4?

http://na.finalfantasyxiv.com/lodest...acter/1178631/

My gear is perfect for this and my skills are well honed. I think my tactic is fine, I have a video I could care if you need to see how i'm approaching it.

I can tell you right now though that I am -not- popping Blood for Blood or Mercy Blow. Are they that mandatory in Turn 4 to the point where if you dont have em it wipes the entire party? I've been trying to beat Turn 4 for weeks and i've not been in a party that can safely get past the first dreadnaught. Can any monks here help me out?