Excitement’s been building for this, the latter of two sell-out shows in Dublin’s Vicar Street as part of Jurassic 5’s reunion tour, ever since the six original members appeared onstage for the first time since 2006 at Coachella last year, featuring DJ Cut Chemist’s return to the fold after he left the group for the old chestnut of ‘musical differences’ in the months prior to the recording of their final album – the least true representation of the qualities that gave J5 their reputation in the first place – Feedback. As Cut Chemist and his foil, Nu-Mark, enter the eyeline, what’s…