I am currently set up pretty much like Bob suggested, even more into the room (7ft), 28" from side and I listen about 4ft away from the back wall so the depth is great and I pretty much removed the room from the equation (short of the low ceiling). Both first reflection points are treated with Acco fiberglass panels. I agree that my coicnern is that 13ft for short wall is not enough to try long wall placement, especially with thes espeaker which project deep behind.
Tks
Tks