This month my UK Disc with the normal Movie should arrive, then we could see the quality difference in the normal movie.
But I still think the movie, not only the Workprint, looks not really well. The Bad thing: there is a not that bad master for the normal movie, in Germany. It was used for the LaserDisc and the cut Version from the Label "MAWA"
Here are a quality example (found on cinefacts.de):
WS '84:
FS'84:
MAWA:
Thats why I say, that the '84 DVD is.. bad quality.