I agree DDK may have done a lot for you and helped you with the selection that you made and the one that you defined in your thread however he didn't teach you how to fish.
What he did is he strapped you into the passenger seat of a car as he drove around the track, you didn't drive and I mean this with all due respect .
I had this discussion here before like when Wilson teaches a sales guy the WASP method, the method is valid but knowing how to use the method, how to listen and what to listen for is something that takes time. It is not simple and singular and applicable to every room and every situation.
I have seen this first hand over and over. Everyone wants a clear formula, one that is totally easy and totally works every single time. Guess what it doesn't and learning to use knowledge is just as important as the knowledge. We all hear we earn how to listen and the target is not universal as we see here every single day.
Even worst is the situation of the so called Sumiko method of speaker placement. We are told by them that the text floating in the net is wrong and misleading, but they keep the "true" version for themselves. I understand that people should be free to protect their intellectual property and not releasing, but in the long term they are harming the high-end market.
Speaker placement is a key point in a system. In this aspect, people owning corner speakers are lucky!