Digital BW, The Print

I'm having trouble getting a neutral print using UT2 inks on my 
Epson 1280. Even with the sliders set to C +25, M -25, Y -25, the 
print is still warmer than I would like. I have the mode set to 
Vivid and am using EEM set to Heavyweight Matte as the media 
setting. Is there another setting that I am missing?  Thank you for 
any help or ideas.