I use mine quite a bit as I'm in a couple different cover bands. I feel the most studio accurate ones I use are for Michael Jackson's PYT, and Pony by Ginuwine. These and several others benefit greatly from running an Atlas comp in front of the C4. I use a couple different octavers for several random cover songs, a synth and envelope combo for Carl Carlton's Bad Mamma Jamma, a Bruno Mars 24K Magic patch, Blinding Light by The Weekend, and probably a couple others I'm forgetting.