As per Dante, the default latency is 1ms
And anyway latency and delays with audio only is not an issue. As per Audio and Video it's no longer an issue. At least not a big problem.
What's missing from some Harman plots (I didn't see a lot of them) is what the ranking for each participant (the individual result). Looking at black and white plots there's no indications if a participant got the same result as you. People at Harman certainly have this informations.
My room is treated on both side (ceilling, back walls and corners). I guess the asymetry is very plausible. Moving the speakers around is tough since they are huge, horns can move on top though. Maybe I'll fiddle a little bit with them.
For MMM, I'm getting very consistent measurements even...
I did use the lower db level for my curve EQ, and got a more solid center image (It's not surprising though that level match speakers will give a better image). Note that mid and bass level seems equal for both speakers. I used the 1/12 smoothing.
At low level listening I prefer a more flat HF...