Tried it last year, it was interesting.
5.1 ADAM S3A's through 8' of air in a very quiet CR, QTC1 pair to EW LAB102, Apogee A/D, Sony DMX R100.
I was actually pursuing the creation of an effect for a surround mix, but I did listen to it as a stereo mix. I recall the surrounds needed to be turned down to make it closer to listening in the room. Also, I could hear my back diffuser wall a little more. I guess the QTC's are more "omni" than my ears are. I ended up pointing the mics directly at the diffuser wall to get the effect
But you know, M. Wagener has "Fritz the Head", I bet Fritz could really test out the theory...assuming you are wanting to bottle the surround experience into a stereo field, which is about like everybody stepping off the bus and cramming into a VW.