Digital BW, The Print

Has anyone had the opportunity to compare prints made with the MIS UT7
inkset and the Piezography Neutral K7 inkset?

From a technical perspective, is one "better" than the other -- in
printing, in longevity, in print handling, in ink handling/swapping,
in image quality?

Is there subjective differences in the look of the final print? 
Assuming that we set tonality of the UT7 inks to match the "Neutral"
tone of the K7 inks, will one produce a better looking, more seamless,
more detailed, sharper images than the other?

There is at least one thing in favor of the UT7 inks -- they are
cheaper than the K7 inks ($18 vs $30 for a 4 oz bottle). In the end,
does the 2/3rds higher cost of the K7 ink show up on the paper?  Is it
worth it?

I'll probably wind up using one of these ink in a CIS or re-fillable
cartridge with a 2200.  I'm hoping that someone where might have some
experience of both that might aid my choice.  Any thoughts, comments
or persepctives on this would be most appreciated.  Thanks very much.