Review: V Recordings sublabel Chronic has developed a reputation for putting out beats that are even more venomous than its big sister, and their long-standing rollers series is getting a beef up with the fourth instalment. Featuring a litany of acts from a range of eras and a diversity of styles, Chronic Rollers Vol. 4 is a perfect addition to the arsenal of any DJ. 'Blindspot' from Nectax blends a soulful sample with an oscillating warp of juddering bass energy; Mancunian upstart SL8R gets subby and rolling with 'Roundabout'; and Brazilian label long-timers Alibi roll things out tidily on 'Sentinel'. Banging.