The_Tube, Schoeps has a couple of short three-track recordings on their Web site which you can download and use their VST plug-in to mix to stereo if you want. To get at them, sign up for the plug-in (it's free but you have to register), then you get access to the recordings. It's not complicated and it's very interesting.
As for the rear-facing cardioid looking into shock mount junk, I think the angle of the photograph is maybe a little deceiving because I've seen this rig in real life and it didn't look that way to me, if I recall it correctly. I'll see whether there's another photo around.
--best regards