yoda-sama said:

I'm truly impressed with the effort of this early dub

Actually FWIW, the Japanese dub included with the DeEd is NOT the original Japanese theatrical dub (it's mislabeled), but one done much later for home video release with big-name voice actors, etc (not sure of the date). The original dub is included in a collection of Japanese SW audio on the newsgroups if you're interested.

But your impressions do match up with what I've heard, that the home video dub is strongly preferred over the original theatrical dub in Japan, probably for those very reasons.