Digital BW, The Print

I just switched over to the MIS FS inks in my 7000. I'm using the
Piezo24 RIP, William Turner paper. I must say, I am perplexed! The
blacks are weak and the overall look of the print is flat. I've
tweaked the files to richen them, but, in the end, there seems to be
something wrong. Many of you have reported excellent results with this
combination. Feedback is welcome.

Many thanks.

Best regards,
Stan