Digital BW, The Print

After being content with the UTR2 inkset on a R220 for a few years I stepped up to an R1800 a while ago and tried the 3MK workflow.  

I printed a 11x14 wedding album with it and am generally happy with the results, but for shots that call for smoothness (fog, skies, etc) it doesn't look nearly as good as UTR2.  I'm wondering if the results I am getting are typical for this inkset.

I don't have a flatbed scanner so the following were shot on my 20D with a macro lens (forgive any color artifacts, etc this introduced).

Here are a few shots to illustrate the difference:

http://jingai.com/phototests/BW%20tests/fogUTR2.jpg
vs
http://jingai.com/phototests/BW%20tests/fog3mk.jpg

Take a look at the skin tones and sky:
http://jingai.com/phototests/BW%20tests/kissUTR2.jpg
vs
http://jingai.com/phototests/BW%20tests/kiss3MK.jpg

http://jingai.com/phototests/BW%20tests/dressUTR2.jpg
and
http://jingai.com/phototests/BW%20tests/dress3MK.jpg

Does this look normal to you?
Thanks,
Roger