Digital BW, The Print

I've been testing  mis eboni black with BO on EEM (epson 2200).
   Prints are cooler with mis ink but the dmax is also noticeably lower. 
  Overall I find the print made with Eboni black less pleasing.
  You can (apparently) raise the Dmax by adding somme contrast to the
print, but then I find the tonal range less pleasing.

  
   Anybody else noticed? 

  Jerome.