Digital BW, The Print

Just ordered some more MIS ink and an extra cart to try this workflow. 
Just curious but can you see any difference in the finished print or is 
it just a question of longevity. When I print a 100 stepwedge using 
different ABW settings I find it difficult to see a totally neutral 
print. Hence a previous post asking for guidance. Maybe its my eyes but 
I see some colour. Would appreciate what you see. Perhaps I'm being to 
fussy!!

Peter