Mike’s current main squeeze is a 1985 Gibson Les Paul Custom that he bought in his hometown of Chicago at Rock N Roll Vintage. Since acquiring the guitar, he dropped in new pickups—a high-wound Lollar Imperial in the bridge and a standard Lollar Imperial in the neck. Sullivan goes with D’Addario NYXL .011–.056 strings and tunes this one to a DADGAD variant—C#-G#-D-G-C-A#. When it comes to picks, he’s been loyal to the Dunlop Max-Grip Jazz III since he found some inside a box for an Andy Timmons pedal.