Pedals that stack with the Maestro Mariner Tremolo

Fjord Fuzz Odin

Run Fjord Fuzz Odin into that low gain platform and it finally gets some fuzzy

EarthQuaker Devices Dirt Transmitter

The low gain tone has headroom to spare — EarthQuaker Devices Dirt Transmitter gives it fuzzy to fill it with

Suhr Brighton Treble Booster

Keep Maestro Mariner Tremolo after Suhr Brighton Treble Booster in the signal chain, clear of Suhr Brighton Treble Booster's own gain stage

Alexander Pedals SpaceXpander

Put Alexander Pedals SpaceXpander after Maestro Mariner Tremolo in the signal chain, clear of Maestro Mariner Tremolo's own gain stage — goes in the amp's FX loop (or last, into a clean amp)

EarthQuaker Devices Afterneath

EarthQuaker Devices Afterneath's ambient voice goes after Maestro Mariner Tremolo in the signal chain — it's not there to compete with Maestro Mariner Tremolo's own modulated character — goes in the amp's FX loop (or last, into a clean amp)