The West Coast’s Gridlok shows his versatility on a pair of rollers that mine different dancefloor vibes. On the A-side, he teams up with fellow Bay Area producers Illformants (a.k.a. Controlled Substance and Angel Zero) for a punchy tech roller that’s well produced, but ultimately formulaic. “Bad Luck” rules the flip, with warped technoid touches that are buoyed by an early-morning melody-it strains and releases, switching back and forth between loopy bass/pounding drums and an easy roller.