The Cooper FX Expression Generator requires MIDI to separate LFOs for each pedal, while the Old Blood Expression Ramper allows on-the-fly adjustments with a single knob.

The Cooper FX Expression Generator supports advanced MIDI features, allowing dynamic changes to knob positions, making it suitable for planned, intricate setups.

The Cooper FX offers sawtooth wave emulation by setting one side fast and the other slow, providing more wave shape options than the Old Blood Expression Ramper.

The Expression Generator can control up to four pedals simultaneously and includes momentary, latching, auto, and tap tempo modes with MIDI control and presets.

The pedal's signal path allows for blending, parallel routing, signal path flipping, loop feedback/oscillation, 3-1 splitting, and more.

The signal path selector allows quick reordering of pedals, operating in parallel, and controlling the dry signal with a feedback loop.

The Expression Ramper can operate at slower speeds than the Cooper FX Expression Generator, making it ideal for gradual ambient changes.

The Cooper FX signal path selector offers A/B flipping and feedback options, unlike the EHX Switchblade Pro, which lacks feedback functionality.

Some users found the Expression Ramper's slower operation ideal for swelling parallel loops, offering a more improvisational feel compared to the Cooper FX.

Some owners express a desire for stereo ins and outs for each effect pedal, as current inputs are mono.

Despite initial setup challenges, users appreciate how the pedal expands the potential of existing equipment without extensive programming, thanks to its advanced utility features.

Some users feel the demo would benefit from simpler settings to better illustrate the pedal's complex routing capabilities.

The Cooper FX is ideal for music that benefits from syncing effects with MIDI, whereas the Expression Ramper suits spontaneous, real-time modifications.

This pedal setup moves toward a modular system similar to eurorack, transforming traditional pedal boards into versatile configurations.

Users report a volume drop issue when maxing out dry volume, resolved by using the alternate function 'Inverse' on the loop with the Blooper pedal.

Volume knob adjustments cause crackling due to 1dB step volume chips, leading to slight discontinuities and pops; minimal crackling when presets are used.