I usually used an ECT a a light od/fuzz for bass (Fender P, drop C tuning, Orange AD200B, Ampeg SVT412), taming the gain knob and using the Tone Blast to enter in heavier territories. But I'd like to put in my board an overdrive and use the ECT at its full gain as an heavy fuzz. Unfortunately I tried differents od but noone seems to stack very well with the ECT: Fulltone Bassdrive, OCD, different Rats, BAT Reveltaion... They all tend to make the sound really goofy and muddy, pushing out only the low frequencies. Only the Sonic Titan --> ECT combo seems to retain clarity and a good balance between the different frequencies.
Have anyone tried it with other dirt pedals?