Pedals that stack with the Old Blood Noise Endeavors Flat Flange Shifter Device

Beetronics Overhive

Beetronics Overhive leans toward transparent, and that's a real, usable character to pair with

MXR Distortion+

What MXR Distortion+ brings here leans toward compressed — that's worth building a pairing around

Electro-Harmonix Holy Grail Max

Keep Electro-Harmonix Holy Grail Max after Old Blood Noise Endeavors Flat Flange Shifter Device in the signal chain, clear of Old Blood Noise Endeavors Flat Flange Shifter Device's own gain stage — goes in the amp's FX loop (or last, into a clean amp)

Eventide Space

Keep Eventide Space after Old Blood Noise Endeavors Flat Flange Shifter Device in the signal chain, clear of Old Blood Noise Endeavors Flat Flange Shifter Device's own gain stage — goes in the amp's FX loop (or last, into a clean amp)