Digital BW, The Print

Hi, just joined the group. Im looking for some suggestion on 
minimilizing metamerism. I printing black and white images on a epson 
1280 using premium glossy photo paper and matte heavyweight paper. Im 
currently printing straight RGB, I have toned prints in the past to 
deal with the color shift, but I would like to print a particular 
project without toning. Can someone offer some insight. Would 
enhanced matte paper, printing at a higher dpi, and/or making a clor 
adjustment help any? Im a photo major and this is my first semester 
printing digital, and so far I love it, except for the metamorism 
that is ;) Thanks, Adrian