Pedals that stack with the Cusack Music Tap-a-Whirl V4

Beetronics Overhive

Beetronics Overhive's own transparent character is the real reason this is worth trying

MXR Distortion+

MXR Distortion+ leans toward compressed, and that's a real, usable character to pair with

Keeley Halo

Put Keeley Halo after Cusack Music Tap-a-Whirl V4 in the signal chain, clear of Cusack Music Tap-a-Whirl V4's own gain stage — goes in the amp's FX loop (or last, into a clean amp)

Roland SDE-3000D

Keep Cusack Music Tap-a-Whirl V4's pristine voice out front: Roland SDE-3000D goes after Cusack Music Tap-a-Whirl V4 in the signal chain so its pristine voice doesn't muddy it — goes in the amp's FX loop (or last, into a clean amp)