Pedals that stack with the Keeley Bubble Tron

Wren and Cuff Box of War Small Foot Fuzz

What Wren and Cuff Box of War Small Foot Fuzz brings here leans toward sustaining — that's worth building a pairing around

Greer Black Mountain

Greer Black Mountain's own fuzzy character is the real reason this is worth trying

Red Witch Titan

Keep Red Witch Titan after Keeley Bubble Tron in the signal chain, clear of Keeley Bubble Tron's own gain stage — goes in the amp's FX loop (or last, into a clean amp)

Boss DD-2 Digital Delay

Run Boss DD-2 Digital Delay after Keeley Bubble Tron in the signal chain, clear of Keeley Bubble Tron's own gain stage — goes in the amp's FX loop (or last, into a clean amp)