OK, so M/S is cool but no front-back dimension, which is what I live for... so, it strikes me, (whack!)- I think the next thing for me to try will be M/S distance mics- 10 ms away from the good old single main mic I've been cultivating.
There are gonna be some anomalies with the phase in M/S, but zap! they vanish in mono. Along with the side mic. So I'm left with my tried&true main mic with a kiss o' distance mic.
Should be fun!
edited to say: oh yeah, I forgot to say, omni for the M mic all the way.