This album sounds terrific in mono vinyl, no doubt about it, but I think it’s the first Beatles album that I’d prefer listening to in stereo vinyl.  The Beatles were still thinking in terms of mono mixes at this point but their layering of musical elements in the studio was getting more and more complex, and the interplay of layers was becoming as interesting as the overall sound.  I think you can appreciate that better in a stereo mix, at least where this album is concerned.