I still have an old BBE 422A laying around I used it on my guitar rig about... 18,20 years ago, and has not seen much action lately. I assume the SansAmp you' re using is the MIDI, silver-faced one? (I have the older, non-MIDI rackmount one, but have not used it for bass... yet!)
My main rig has become quite simple... I think I can add a picture here, if I find a nice, fast way to resize it. A Yamaha PB-1 preamp, and a DBX163x compressor and a Digitech RDS1900 digital delay, one after the other, thru the PB-1's fx loop. I' ve been using a Hartke HA2000 head since I've found it easier to handle on most situations than what I originally was using (a QSC GX5 power amp), somewhat forcing me to divide my rig into Tone shaping on a 4spc rack, and Powering on a separate 2spc rack with the head (it used to be an all in one huge rack system of which I've found I' ve been using only a half). But the BBE thing got me intrigued again, and after so many years without using it I'm wondering whether I should use it on my bass rig or not. Where in the chain are you using it. or where would you hook it?
This tone madness never ends... does it?