Not sure, and I personally don't care as I go for CD usually, but I do think that the Mingus CBS has edited versions of tracks taht were restored for the recent Sony/Legacy 3CD reissue of that material. That one goes cheap, though, so you might as well get the LP Mosaic and the CD version from Sony, you'd ahve it all then, the tracks/albums as originally released, and the restored versions on CD.
My only Mosaic LP sets are the Brooks (great), the Pepper (not too essential, but nice), and the Buck Clayton (love it, but hardly spin it).
ubu