To continue discussion based on experiences from 1st attempts with 1 drake up.
The linked guide (which everyone should read and watch the video btw), suggests that if going with 1 drake up, it should be Tenebron, not Vesperon.
That said, if you're going to:
* To do one drake, kill Shadron and Vesperon
Tenebron is the one that "produces" whelps from the portal. Tenebron also doesn't have disciple, no twilight torment and 2-3k dmg whenever you deal dmg, like with Vesperon or +100% fire dmg like with Shadron (the hardest).
Thus if we'd try it with Tenebron up, we'd only have more adds to be controlled while Tenebron is up.
If all dps would blow all cooldowns on Tenebron, and whelps would just be ignored/tanked (like we do Tenebron alone when killing the drakes), I think we would do better than with Vesperon (whelps disappear when Tenebron dies I think).
But the tactics do start with avoiding flame wave and void zones, which both caused a lot of havoc yesterday.
EDIT
So first thing is to know where the caps are (either "center" or "sides", depending which dir the wave comes from).
Here's the strat I use for waves:
1) Stand in the safe spot for one wave and in the far side for the wave coming from the other
2) Turn my camera to the way the "unsafe wave" will come.
3) if the wave comes from my back, I'm already in safe spot. (no movement)
4) if it comes from front, I see the wave in addition to the bossmod warning, I strafe to the safe spot and continue
5) Strafe back to the original safe spot, or move to the other side and turn camera around.
from the "what went wrong first part of the linked guide"
http://www.tardfactor.com/experiences/the-hard-waySet spell effect to lowestfirst night everyone had learned how vitally important it was to stare at their feet and to be aware of lava wave positioning.
no need to spread around at allwe thought Lava Strike spawned fire elementals when it hit people. We didn’t realize this wasn’t true until the second night. The reduced DPS caused serious issues with our ability to kill Tenebron quickly.