I used to be a tone adjuster; seeking best tone for each tune but live there is no time so find a decent tone Asap ; set it and forget itDo you twiddle with the tone controls on your bass or on your amp or both?
For me, all the bass tone and volume settings controls are generally fixed fixed and I adjust the particular amp I am playing through to adjust for the amp/room. I do some minor tweaking on the bass tone and volume settings during a performance, but it is mostly the amp that I adjust and set to get my sound.
Tonight, I played a jam where the amp had the treble wide open and the bass at zero and was asked not to adjust it, and adjust my nass tone controls. Got a meh sound.
As fir the perfect tone ? Find it on your own time ; no one is likely to appreciate your efforts more than you anyhow !