I have my EQ flat and have yet to experiment w filters and I'm happy. How about you? Have you messed w the filters yet?
With my VM Jazz, I generally cut the highs and mid-highs a little to cut back on the natural brightness of the bass.
I also boost the lows and mid-lows a little to bring out the bottom end.
If I'm looking for a "dirty" sound I turn-on/up the VLE setting a little.
Some of this may depend on what kind of strings you are using. Right now I'm using Fender black nylon wound strings. But, I've been thinking about replacing them with DR Black Beauties.
Try it and let me know what you think.

