The GFI System Skylar Reverb and Orca Delay share a powerful, yet easy to use form factor and that dishes out high quality time-based effects. Each pedal can be played in mono or stereo by using TRS cable on the input and ouput jacks. Seeing them side by side, the Skylar and Orca’s knobs and functionality are very similar, so if you learn one, the other is pretty much figured out! The 4 knobs are also switches all have multiple functions thanks to GFI’s familiar push, hold and twist commands. For example, the Orca’s 3 main parameters of Time, Repeats and Level are adjusted as normal but holding any knob down and turning (twist) adjusts secondary parameters like Wow & Flutter in Orca’s tape mode or EQ and pre-delay in Skylar’s Plate reverb mode. The 4th knob selects between the pedal’s 4 unique modes but also gets you a 4 secondary parameter when twisted or the Options and Global settings when tapped or held. Both of these menu pages aren’t super complicated and handle opt