Is it just the rears that are swapped on the SACD compared to the SQ LP, or are the entire right and left sides swapped? I looked at this in my DAW after Owen's comments and there aren't obvious clues that the rears are 'twisted' in relation to the fronts (ie no swirly pans) but there's also nothing that would be screwed up by swapping them. Is there a hard-panned front left/front right instrument on the SQ LP that I could check to verify the fronts are correct, or if someone just knows (@sjcorne ?) maybe they could say?
While I was investigating the channel assignments, I had a look at the levels, and while for the most part they seem perfectly balanced, I did notice one song (Lazy) where the front right needed to be raised by +4dB - all the front-center panned info (lead vocals, bass guitar, drum mix) leans pretty hard to the left otherwise, and that seems to perfectly balance it like the other tracks. There are a couple of other songs where I think the current rear-left needs to go up by 1-2dB but it's just a minor tweak. I'll post a full rundown once I get everything figured out.
While I was investigating the channel assignments, I had a look at the levels, and while for the most part they seem perfectly balanced, I did notice one song (Lazy) where the front right needed to be raised by +4dB - all the front-center panned info (lead vocals, bass guitar, drum mix) leans pretty hard to the left otherwise, and that seems to perfectly balance it like the other tracks. There are a couple of other songs where I think the current rear-left needs to go up by 1-2dB but it's just a minor tweak. I'll post a full rundown once I get everything figured out.