After 1984's Great Moments in Big Slam LP (which I missed getting, somehow), The Box were dropped from Go! Discs. They recorded four more tracks in Cabaret Voltaire's Western Works studio in October 1984 and released them on the Cabs' Doublevision label as Muscle In (DVR 10). The manic Box energy is still there, but Charlie Collins's woodwinds are notably more melodic; take away the vocals and some of this material could pass for A Primary Industry (or their later incarnation, Ultramarine). Richard Kirk produced "radical remixes" of two of the tracks for a promotional 12", DVR P1.