For my own stuff, and general practice, my tone is generally wide open. If I'm looking to get close to someone else's tone, for a particular song, I'll start fiddling with knobs.
I'm getting ready to rewire mine master volume with series/parallel, pickup blend control, and either TBX or
a multi-cap switch on the tone control.
Fender Jazz Bass Club #1021,Blues Bass Players Club #172
Lefties Who Play Righty Club #288