Digital BW, The Print

I have been reading with great interest the current post about the 
methods to produce b&w. I have been paying close attention, 
especially since Paul and Jerry have been contributing much of the 
comments. I have been reading the various topics on several groups, 
trying to decide on which method to go with.I have come to respect 
their opinion, and appriciate their shairing of their hard learned 
knowledge.I feel they have a good handle on this stuff. It wanted to 
chime in when a question was answered about the longevity of the MIS 
inks. The original person asking the post seemed somewhat supprised 
that a dye could bost of this life span. If I am not mistaken, the 
MIS inks are not just dye. They are a mix of dye and pigment. This is 
an area I am very interested in as I would kind of like to quad print 
with just dye. Have you guys used a dye only quads. If not, is their 
a reason to stay away.     I will be using an epson 3000 & p/c.  
Thanks....