This is one of those things where it's really hard to suggest anything because every bass and rig responds differently in order to create a clear and articulate sound. And the definition of clear and articulate changes from person to person.
What you really need to do is listen to your tone and determine how it's lacking and what needs to change in order to become clear and articulate. Typically, that can mean getting rid of low mid/upper bass mud and the very lowest frequencies. So, maybe try the first filter set as a high pass, with the frequency down at the bottom and a little bit of damping to provide some bottom solidity (this will get rid of subsonic mud but ensure that there's no lack of oomph), and the second filter in bandpass mode somewhere between 3khz and 6khz to add a little sparkle and snap. Keep the direct signals low or off. That's one way.
But if you can't hear how the tone needs to change, it's going to be hard to make it better.
Other things to consider:
Clarity can be gained by figuring out what frequencies the other band members aren't occupying and going there, whether in your part or your tone. If the band is cluttered and busy, no tone is going to be effective in getting more clarity and articulation. Watch out for keyboard players. I've noticed a lot of them play a lot of stuff in the low register out of habit.
Phil, for a fairly good portion of his career, had interesting midrange stuff going on, instead of the currently popular smiley face tone.
A pick definitely helps with clarity and articulation.
