In 1990 the band signed with Caroline Records and released a single "Murder/Tractor". Cronin left shortly after; although he would remain in the background- particularly at live shows- contributing to auditory effects, lights, and visuals, for many years. In 1991 they released their first full-length album, the cult classic "Spine of God" on the labels Go Get Organized/Atypeek Music, Primo Scree, Glitterhouse Records, Caroline Records, Glitterhouse Records. The album is hailed as one the classics of the stoner rock genre ranking 28th on Heavy Planet's "Top 50 of All Time". The album contained the single "Medicine" (which would be recorded ten years later on "God Says No"), which was also the band's first music video. The band followed with a tour alongside rising grunge band Soundgarden. The tour helped the band get a recording contract with major record label A&M Records.