The Definitive Dark Knight Guide

[Xenosan]

If we didn't strive toward optimal play "because no one plays perfectly", then we would never get anywhere.

You are making an argument where there isn't one.

No Dark Arts for C&S is a DPS loss.

Sitting on an available C&S until you have enough MP to afford DA is also a DPS loss.

Neither choice is good. You screwed up either way. Is sitting on the CD the better of the two mistakes? That depends on the length of the fight and the number of occurrences the player holds back on it.

[Eej]

You are making an argument where there isn't one.

No Dark Arts for C&S is a DPS loss.

Sitting on an available C&S until you have enough MP to afford DA is also a DPS loss.

Neither choice is good. You screwed up either way. Is sitting on the CD the better of the two mistakes? That depends on the length of the fight and the number of occurrences the player holds back on it.

On PLD, sitting on Circle of Scorn CD for ~8 seconds so that it matches up with Fight or Flight cooldown so you can get two of them within the duration of F&F is a DPS increase. I don't see how this is any different.