Oh yeah! I've never had any decent luck with those. My old tank didn't have actinic supplementation, but the new one does. I just haven't had enough time with the camera in front of the lights. I'll experiment some, so I can learn more myself.
Oh! Another help for me was in Photoshop. Pull up the Hue/Saturation window and use the eye dropper to work with a particular part of the spectrum (When the Hue/Sat window is open, you can bring your pointer over the photo and it will change to an eye dropper so you can work with colors selectively). Pick an area that's obviously out of whack, and look into both darkening and desaturation. That's also helped me kill some of the blues.