how do you decide which distortion to use?
Ah, that's the hardest part of it, haha! I get my basic tone with the B7KU. Then I add the others ODs in front of it to give me different flavors and nuances, depending on the mood and the tone I want to achieve (the room I'm playing in a specific moment plays a very important role in this). But I also use the BB Preamp and, in particular, the MXR BD on their own. I find the BD doesn't sound so good through the B7KU (with the distortion channel on, I mean; the EQ section is incredible and I use it all the time). The BB Preamp sounds fantastic through it, but if I want it to sound in a more "classic" fashion it does its best by its own alone. ODs are my favorite effects on bass, and I'm very happy ATM with the possibilities I have with all those pedals in my board.