He did a project based on the fullscreen vhs tapes of the special edition i am almost 100% sure of it.
As he also did the faces tapes in fullscreen. Which were never commerically released on DVD that way.
On Russ's site click on special edition and look at the right hand of the page for the mention of dark jedi full screen special edition.
Click on the link it exists.
The real unfortunate thing is it mentions the capture method he used for the laserdisc widescreen release. Not how the fullscreen VHS tapes were captured.
If fullscreen laserdiscs exist for either the 1995 faces transfers, or the 1997 special edition they must be bootlegs because i believe all commercially released versions were letterbox.