Ok, this is not what you think of when you think "looper", but technically, it uses many of the same concepts.  The results are more along the lines of resonant delays and pitch shifting with dark, foreboding undertones.  Call it a lo-fi reverb, metallic pipe delay, tuned / detuned resonator, flange mangler … it's all about the short delay times with heavy feedback.

Expression Pedal Heel:  Delay A = 50 ms.

Expression Pedal Heel:  Delay B = 0 ms.

Expression Pedal Heel:  Wow = 10

Expression Pedal Heel:  Flutter = 0

Expression Pedal Toe:  Delay A = 0 ms.

Expression Pedal Toe:  Delay B = 50 ms.

Expression Pedal Toe:  Wow = 0

Expression Pedal Toe:   Flutter = 10

Shift, bend, and twist resonant delays.  Wild flanging & filter matrix FX with sweeps.

Latch Repeat for frozen resonance that can be swept for weird stutter / hetereodyne FX.

Unlatch Repeat for fading decays (full toe down EXP PED for near-instant decay / gating.

EXP PED swaps delay times + Wow / Flutter settings for resonance & pitch change FX.