In one of my early outings I inadvertantly left the white balance set to Incandescent and got a bunch of blue pics.
The next trip out I set it to Daylight and got a slightly green cast, so I wanted to do a test of all five of the uzi's white balance settings against two filters and no filter.
The 2590 pics are taken with a Tiffen 25 Red filter combined with a Roscolux #90 Dark Yellow Green.
The 2790 pics are taken with one each Roscolux #27 Medium Red and #90 Dark Yellow Green.
I can definitely see that the Daylight setting gives a greenish cast to both filters and the fluorescent a very slightly reddish cast.

It looks like Auto is the winner, with Incandescent handy as a very special effect.