Pedals that stack with the Carl Martin Surf Trem V3

Beetronics Nectar

Run Beetronics Nectar into that transparent platform and it finally gets some low gain

Walrus Audio Eons

The transparent tone has headroom to spare — Walrus Audio Eons gives it low gain to fill it with

Neunaber Wet Mono Reverb Pedal

Keep Carl Martin Surf Trem V3's modulated voice out front: Neunaber Wet Mono Reverb Pedal goes after Carl Martin Surf Trem V3 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)

Meris Polymoon

Keep Meris Polymoon after Carl Martin Surf Trem V3 in the signal chain, clear of Carl Martin Surf Trem V3's own gain stage — goes in the amp's FX loop (or last, into a clean amp)