Okay, listened to Shine on You Crazy Diamond from each of the three pressings, back and forth, back and forth, etc., etc. All three sounded good, and it took a while to identify the last few minutes of the song as best for listening for differences. There's a lot going on at this point, as vocals end, leading into an intense instrumental finale. There's a sax solo, dueling guitar melodies (beautiful, I might add) left and right (a bit more prominent in the right channel), a thumping bass line, and lots of hi-hat. It surprised me to find that the Japan pressing didn't do justice to the complexity of the music, with the guitar melodies lost to the background, especially in the left channel where the guitar was basically absent. As a result, there didn't seem to be quite the soundstage the other pressings presented.
Even more surprising to me was that the OG US pressing held its own against the 2016 Grundman, with both giving ample space to the separate elements of the mix, creating a bigger soundstage and providing more detail to pick out from the music. If the 2016 edged the OG, it probably can be chalked up to a different vinyl formulation because the mix sounds very similar. The Grundman is on a much heavier vinyl, and while my OG is pretty clean, the new record is quieter.