While I agree they aren't the best openers,

Quote Originally Posted by Sweetgrass View Post
2. None of them use Scourge as the first GCD, when it is DRK's single highest pps GCD skill.

3. None of them use Carve and Spit ASAP, when it is DRK's second highest pps off GCD skill and great for establishing enmity.

4. None of them use potions early to boost the above.
You may want to re-check them, as one is with NIN and one is without. TA isn't up on your first GCD, so with TA you want to be able to snapshot Scourge under it as well as use DACS under it. The potion delay is also due to this, since potions sit on a relatively long timer it's significantly better to get it's duration to line up with TA.

I do, however, agree with points 1, 5, and 6.