OK. FINALLY making some progress with this, thanks for all the advice.
I will say the M/S track functionality needs some refining, IMHO. I’m not entirely sure what its role is supposed to be, when the workflow is often the same as the L/R tracks: Process differently, edit together. I don’t see when I’d want to edit the S differently than the M, except in the oddest of circumstances. It’s a little confusing to have that mode available, when it then doesn’t seem behave the way it would be most useful. Having to re-name everything manually to render isn’t workable. I consider working with M/S files in L/R kind of a workaround, as all the tracks and processing functions refer to L/R, instead of M/S.
There’s the summary of my piece– I hope this makes sense, PG, and there can be some consideration of a typical real-world workflow in future updates.