no, the wolfmother guy has a 70s SG too.
those dont neck dive due to the much heavier body weight, i have a '74.
i believe he uses a '73.
the same also applies to LP's from the early 70s, way way heavy, guess the mahagony then was much denser than it was before.
when i put on the '89 i got, neck dive like hell.
same with newer SG's i've tried.