Corner placement of stereo system

I've set my systen up as you descibe, and am very pleased. I only listen from one position, although sound is 'acceptable' along the line that is equadistant from the two speakers. Set up is crucial, as always. My speakers and listening area form an equilateral triangle. The speakers are each the same distance from their respective back walls, and each speaker is the same distance from the other speakers wall. Imaging and focus are great, and depth often surpasses what is possible with a standard arraingement because there actually IS physical depth in the center of the stage. On good recordings, soundstage extends well past the confines of the speakers.

My system at least partly is adjustable for the most serious potential problem, uneven bass. I have the Stereophile 'B' rated Acoustic Research AR-1. They sport an efficiancy rating around 95 dB, largely in part due to the 500 RMS Watt Bob Carver subwoofer built in. The subwoofers have a adjustment for level on the back of the speaker, and using Stereophile test disks and the Rat Shack meter, have pretty good flat responce from each speaker individually after Ive tweaked them out, and even FLATTER when measured together.
The biggest problem with standard rectilinear set-ups is the existance of standing waves, or room nodes. This just doesn't happen the same way with a corner set-up.
Stereophile had something to say on the subject a while back. Anyone remember what?
As far as questions about symetry or mirror images, there is a great deal of symetry with a proper corner setup along the center line. True the 'two different back wall' lengths are different, but this is precisely the PROBLEM with conventional set-ups. Besides, the room needs to be properly set-up with appropiate wall damping and reflection absorbers anyway.
Finally, these discussions seem to be getting to the point of 'a picture is worth a thousand words.' We need the ability to attach pictures, diagrams, bmp's and jpg's. Any suggestions on that?