That of the Headline Types is decidedly more narrow in order to do justice to the requirements of headline typesetting. That of the Bodytypes is adjusted for readability.
The most obvious differentiation can be found in the spacing. One is designed specifically for headline typesetting (SH: Scangraphic Headline Types) and one specifically for text typesetting (SB Scangraphic Bodytypes). Since the release of these fonts most typefaces in the Scangraphic Type Collection appear in two versions.