This guy spawns all over t he zone, heck, I even had 2 up on track and verified that more than one can be up at the same time. What was I doing there? Farming "chunk of condensed shadow"s They drop off the shak dratha and only during the night, I have found you got about 30 minutes to kill mobs and they respawn as shak dratha. If you kill them anytime else, they spawn as gor taku. so kill them from 3 pm to 10 pm (game time) and you will only have shak dratha spawn. For those of you who can't firgure out a way to do this, think out of the box...
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I know you believe you understand what you think I said, but I am not sure you realize that what you thought you heard was not what I meant.