Russell- Take this with a grain of salt cause when it comes to technical stuff, I don’t know WTF I’m talking about. I have an old BIS recording for a chamber size group featuring guitar and flute soloists. There is exactness to this that you can’t help but notice. It was recorded with two Blumien configured ribbons on a tree in front of and above the players and it sounds exactly like you would expect looking at the layout of the group on the back of the album cover, or if you were seated in the first few rows. This was made in a fairly narrow room with high ceilings and a hard floor (also pictured) and I expect that matters. I can hear around everything, even under everything. Instruments are very well separated and palpable. It does not, however, have the warmth of tone I hear on IGN II. I could be down for more focus. I could be for more of a 360 degree separation (not relating here) and radiation of instruments. But, at what cost? Well, not very much, really. The only trade off acceptable to me is perspective. And you can open up the dynamics for my two cents, also.
I expect there are special considerations to made regards every size venue and factors I know nothing about. Not to mention interested parties. If you didn’t change a thing, I’m good. I’m always interested to know how a recording is made. Me, and a lot of guys here, I expect.
Thank you for the insight, your good work, and, did you ever get to San Francisco?