Jesse F. Keeler

At around 19:55 in this Rig Rundown video, you can see the Stereo Chorus sitting on the top left of Jesse's pedalboard. He does not use it for the Chorus sound, instead he uses it to split the bass signal between his two amps (Peavey Festival 800 and Acoustic 450B) He says he discovered it "by accident" because he did not have a 1/4 inch splitter. He says he "noticed the stereo part of the pedal" and seeing as he "hadn't used both outputs before" he used them to split the signal to both his amps.

In the accompanying article from Premier Guitar, they write:

"Keeler’s aggressive, distorted bass tone comes mostly from his amps. His pedals are relatively straightforward, and he uses them sparingly. The signal chain starts with a Dunlop Wah, then into an MXR M80 Bass D.I.+, which sends a bass signal to the FOH engineer. From there, the signal goes to an MXR Ten-Band EQ, an MXR Carbon Copy Analog Delay, Morley A/B switcher, then off to the Ibanez CS9 Stereo Chorus, which splits the signal between his two amps. Before hitting the amps, one signal is run through an Electro-Harmonix Micro POG. The last stop in the signal chain is a Dunlop Kerry King KFK Q Zone."