Digital BW, The Print

SG inks do shift. The same is happening to me and with prints that 
have not been printed long ago ( 4 months). And yes they shift to 
green.
SG have metamerism. Much less than epson inks but still visible 
metamerism. I went to this option because I like gloss or pearl 
papers. I also think that metamerism is acceptable if it is not so 
bad but that green shift in such a short time is not.

I am waiting to the new piezo to se if I go this way. I tried vm 
mis ... no metamerism but I just don't like matte paper. I also 
might try the new mis inksets.

Regards