Digital BW, The Print

Jerry! I'am thinking I do don't have MIS 's best black. The smell is the same 
as the other inks. and Its obviously lighter than piezo black so maybe is 
double density or standard. 
When I call MIS tommorrow, which Black MIS ink should I ask for regarding a 
six ink 7000. And how should I expect the Label to read?
Steve M.