Funny how one man's 'destruction' is another's improvement. (And the green negative effect on the cover you showcase would most likely have been an editorial decision.) Having seen the unaltered Superman heads, I think DC made the right decision in having them changed to 'on-model' ones.
Kid, it's great to hear from you! You're right, of course, "different strokes (sic) for different folks," I just never liked the Murphy Anderson re-dos, and the Coletta inks, arrrgh, but I sure do love Kirby's energy on Jimmy O