Hi Jason and Welcome here.
Unless you are playing directly to the line mix board,( then maybe the bass controls are the only to take in consideration), I really think that the overall bass tone for a player is a sum of several things like: bass type, strings, cables, amplifiers, boxes, effects and of course playing technique.
In this case it's rather difficult to have a sound formula or a sound refference only with the position of the bass' controls.
Best regards
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