This kind of thing also goes along with what Mike Verta was saying about the '77 crawl on his sources having a lot of instability, while the version seen on the GOUT (which to me looks pretty damn authentic) weaves differently and much less. It's possible that the GOUT version was recreated with CGI, but given the general lack of effort associated with that release, it seems more likely that it's actually real, because to have recreated it so closely would have required an authentic source to base it on, and simply scanning it and pasting it in would have been much easier.

My first thought was that these recomposites were done at the same time they made the mono mix, but if the bootleg sources with mono audio have the early versions, then that wouldn't seem to be the case. Perhaps they were done when the film's release was extended in 1978, which would allow ample time for them to have noticed the minor flaws and decided to correct them.

As for the earlier shot appearing on the 80's video master, which also doesn't have the burn damage seen on most other versions, it had to have come from an earlier source than was used for every other release.