Just picked up a c1977 Japanese ABC pressing (YX-8114 AB). To my ears this is now the best copy in my collection. MUCH better clarity of instruments and all the little sounds that are part of the performance. Musicians are anchored in the space of a wide and deep soundstage. Wayne Shorter comes in like a soaring angel. In comparison, my AB and other copies sound muddy. Caveat is I think the Japanese engineers boosted the treble slightly while vocals seem farther back in the mix. Japanese copies are readily available for about the same cost as other premium reissues.