Sour Grapes / Rob Sparx's debut release on his new label "Sour Grapes" catering for the heavier and moodier side of dubstep: Warpig is a filthy sub heavy full on spazzy dancefloor tearout with basses and leads that sound suspiciously like pig squeals and grunts whilst Friday 13th is dark sinister moody throbbing minimal halfstep on a Loefah tip.