I am very close to a decision. I'm trying to gather my thoughts so I can communicate them clearly and with the language understood by most on this forum.
I'll be working on it over the next day or so.
I do however want to hopefully end the discussions on my room and entertainment center. By no means do I have any expertise regarding room treatments. I understand what they do, and why they may or may not be needed. Is my room "live"? Yes. Do I believe I hear anything in my music reproduction that the room is adding/taking away? No. Do I have an audio enthusiast friend that agrees with me? Yes. Do either one of us have ANY credibility? No.
I spent a lot of time moving the Sierra's around this past Saturday. From my results, the only thing that made a significant change in sound was listening to them near field. They took on a more airy presentation. At no time could I really negatively affect the sound stage width, but when I had the speakers in front of my entertainment center, I did notice that the stage had more depth. It wasn't significant, but I did notice it. Please understand that I also never placed the speakers anywhere I didn't think they could stay with the exception of in front of my entertainment center.
I ended up with them at 21" off the front wall with about 5 degrees of toe-in (visually on the toe-in).
The near field listening had the speakers about 8' apart and about 10' from me (they were a little more than 3' in front of the entertainment center). As I said the Sierra's took on a more airy presentation which I thought was for the better. Moving them to where they are now reduced the air and made them sound more clear. If this makes no sense, I can't help that and I'm sorry.
The midbass output was still good near field, but is better reinforced where they are sitting now with just a hint of being a little weak.
The sound stage is wide, high, and has more depth than my B&W's ever have, but again the stage is not as deep as when I had the Sierra's near field.
Overall, I've had the Sierra's in about 20 different combinations of placement and toe-in. I've at least proven to myself that I have them in a good location that allows them to present themselves in a very good way. I've also proven to myself that any early reflections are not costing me much of anything. Are there opportunities? Sure, but isn't there always? Diminishing returns is in full effect in my mind.
Anyway, stay tuned for my final thoughts...
P.S. My audio enthusiast friend was over this evening and we spent 3 hours listening to the Sierra's. B&W lost customer tonight.