Thank you for the info. One of the features of my amp is that it has several pedal models built in. I plan on spending sometime playing with and stacking different effects. My current bass has fresh rounds on it so, I'll do what I can.
In addition I do currently own a Behringer BOB800 (Boss Bass OBD-3 clone) and it's a really good little pedal. Behringer gets a lot of crap in some places, but I've found they are very good value for the money invested. Do you have any suggestion for settings on a Big Muff or Tube Screamer-type pedals that have worked for you in the past
Well, I once read a review of the Big Muff that said: Volume? Who doesn't want more volume? Turn it up all the way. Tone? Who doesn't want more tone? Turn it up all the way. Sustain? Everyone wants more sustain. Turn it up all the way.
I laughed at the time, because I tend to do turn everything up on all pedals eventually. I have a problem, and it was nice to have a kindred soul running around out there. But when we went in the studio to record, I had the Muff set more mildly than my nature. The engineers and producer didn't like it, came out and fiddled with the knobs different ways while I played till they liked it, and ended up with all three knobs turned all the way up. Turns out the guy writing that review was right!
When it comes to overdrive, I run them like I run just about any preamp, with the gain wide open. I'll adjust the level to either be unity with my "clean" signal, or I'll have it driving the preamp of the amp harder, depending on the effect I'm going for. However, either of my current daily amps have enough gain that I don't really need an overdrive to make it hairy. It's the 70's forever in my preamps.

I don't feel ready at all, not sure why I agreed with this thing. At least the context will be totally laid-back and carefree so no performance anxiety. No one of those people even cares about our songs or has any idea of the type of stuff we like or do. Totally fantastic premise