Alright, so the comment about BiS gear is somewhat missleading then. What is important is the 4set. Gotcha!
Yeah, that's what I had heard, but since it didn't say anything about it in this guide, then I just wanted to double check. Thanks for clarifying!
I want to comment on your statement about never clipping UA and CoA, which I find false. This is of course not the thread to do a lengthy discussion about it but since CoA ramps up damage over time, it is better to have it never expire and keep the ramped up damage than to let it do the last tick of damage and then reapply it. UA is mainly used to trigger the 4set (assuming you have it) and it is thus more important to have a 100% uptime on it, for the same reason you mentioned having Haunt up 100%. Otherwise I agree with you.