Coincounter

[Judge_Xero]

I wonder if anyone has pin pointed the mechanic behind Animal Instinct.

As a PLD, if I go crazy right off the start, then Animal Instinct will proc within the first 30 seconds.
If I keep generating too much Enmity, then he will spam Animal Instinct and 100 Ton Swing.

(example of starting rotation)(Enmity in Brackets)
Toss Dagger -> Flash/Provoke(900ish) ->Divine Veil->Toss Dagger->Phalanx(350)->Spirits Within for about 850(2125)->Flat Blade Combo 200ish(1100)

So roughly 4500 Enmity in 30ish seconds, Animal Instinct will proc after this for some reason, which is about the time a Thundaga combo will be coming in.

I've heard that if the Tank's Enmity is too low, then he will use Animal Instinct, but it also seems to proc, if it's too high.
So is there some sort of happy medium? Most the videos I've seen, all the DDs just hover at yellow (50%ish).