Whenever someone gives me the Lucas orginal vision BS, I always cite this example:
1980 ESB Version (Theater): Luke does not scream when he falls in Cloud City.
1997 ESB Version (Special Edition): Luke DOES scream when he falls in Cloud City.
2004 ESB Version (DVD): Luke does not scream when he falls in Cloud City.
This is called TAMPERING, and not having any vision at all!