Digital BW, The Print

I just printed a 21 step ramp on Epson Fine Art Smooth with the MIS 
Variable Tone Inks. I am getting a significant amount of mottling in 
the midtones and shadow areas 90-95%. At first I thought that it is 
just wet, but it has been a good 15 minutes and it is still there.

Has anyone else tested the EFAS?

Mike