Wow. What a response. At least we know he read these posts. Strange timing on my part to ask about contacting him...
I did some comparisons with 5.1 and Pentagon, and Pentagon wins out, too. Not just with me, but to about three others who listened to some Simon and Garfunkel that I did. Pentagon won.
I really don't know what is meant by "dry" recordings, though.
And it is still not clear why the ambiophonics method should be used. I read through some of the stuff on the web site, but then I think "ambiophonics," I think about what Jonas was saying about using a room impulse created in the listening environment...I don't remember seeing anything about that at the ambiophonics web site.