Digital BW, The Print

Hi everyone,
I' ve just tried to split printing and I'm wondering wich is the right way to achieve good 
results, comparable to the one with dedicated icc (for neutral prints):
If I work in Rgb and I edit curves to colorize -> split toning my images, when I print I have 
bad results, cause my blacks become too dark and I'm not able to match print and monitor.
Which is the right procedure ? I don't color manage the files, I leave it in rgb, is it a mistake?
May I use qtr to  make curves neutral and toned ( so I can mix them together to reach 
different degrees of toning) with ut3d or they are supposed to be used only through ps?
And, in the end, if I can use qtr could you tell me the right steps to get good results
( I mean, I think it's not enough to profile and make curves but it's necessary to find wich ink 
to be set as a toner...)

thx a lot to everyone

sab