Digital BW, The Print

Hey everyone,

I'm wondering what relative levels of sharpening people are using when 
they're printing on watercolor paper or photo rag versus a lightjet or 
something like that...have you found a need for more sharpening to 
acheive the same perceived sharpness?  the same? 

The reason I ask is because I don't have access to an inexpensive way 
to do trial and error prints so I'd like to get closer to the 'best' 
level of sharpening prior to ordering some prints.  I've ordered a 
couple 12x12 prints from ctphoto.com and while I think the quality is 
excellent on their side I believe I can do better in the preparation 
to improve the final result.   

I should add that I'm familiar with the various sharpening methods, 
etc, so I'm not asking for a tutorial or anything like that :)

Thanks, Brian