Digital BW, The Print

I am using MIS full spectrum inks on Museo paper with
an epson color stylis 3000.  The inks are a continous
feed system and I have done a series of prints with
William Turners Hennamule paper.  I found the tones to
be beautifull, sharp, and exactely what I want. 
Except for that damn banding.  I can print out test
targets until I bleed ink and I still can not get rid
of the banding.  So I decided to switch paper to
Cranes Museo.  The prints are nice. I get a strange
posterization, the prints are not as sharp, and my
values are off,  but the banding is gone. I have tried
levels and that doesn't seem to solve the problem. 
1.How do I get rid of the banding on the turner paper?
2.If I can't how do I get increased sharpness and
tonal range out of the Museo paper?  I need help. If
it helps I'm also using the Cone Driver software.