So couple things:

My WHM ALWAYS has Med II ticking at this point, so next server tick, I'm losing the add immediately if I haven't laid at least a Tomahawk on him.

My latency has never been prohibitive so to speak, other than the fact that I have to stack more SkSp (I'm at 415 now and I'd say I have a 90% success rate at 9 hit zerk). I also think that I may be targeting in a bad way. Like I try to take my target off completely, so that I can "X" target the add... the problem is that I have to wait for Bahamut to use Rage so that I won't auto target back to him then accidentally provoke (its happened). I'm going to try a few things tonight:

1 - Try zooming my camera to encompass Bahamut and where the add will spawn, so that I can d-pad target the add instead of X target, this should cut down on my targeting time.
2 - If that doesn't help, then I am going to try to Flash > Target > Voke (for good measure) > Sunder > IB > Brutal > Butchers to see if I can stick the add with Flash before he has a chance to look at anything.
3 - Hard wire my PS4, regardless

Thanks for the tips, but what I am garnering from this is that what I am doing is the accepted strat and that people are feeling that Flash is NOT the best way to do this. Like, no one is using Flash to pick up every time?

My last question: Do people usually use a visual indicator for when the add has spawned, or do you guys all wait for him to appear on the enmity list and then tab/click/d-pad/flash?