Hi Greg,
we have now a new demo online, where you can compare between a regular Stereo mix using Standard content, and a 2nd version with Full Mic content in a Downmix to Stereo version:
SY-4U - Stereo Mix
SY-4U - Surround to Stereo-Downmix
https://www.vsl.co.at/en/Percussion_Complete/Synchron_Percussion_I#!Demos
Even just comparing within this downmix to stereo version showcase the difference and sonic possibilities quite good. You can imagine how a real surround or even a 3D mix might sound!
I recomment to download both files and add them into any multittrack audio software for an effective comparison.
Both tracks are straight out of the box mixes, no plugins, no EQ, no additional reverb.
best
Herb