Digital BW, The Print

i've done a few search on the forum and on google but i keep getting 
conflicting info...

If i'm not using the curves for printing bw ut7 prints, and instead 
use the slider method... what gamma value should i have on the print 
driver? 1.8 or 2.2?  my monitor is calibrated with eye-one, and i 
work on a PC.  I seem to remember the default epson value is 1.8 
regardless of platform, but i'm not certain what i should have for 
UT7 prints