Digital BW, The Print

I recently converted my Epson 1280 to a dedicated B&W printer using 
the MIS UT2 inkset. I have learned a lot from reading the archives 
but I have a couple of questions regarding creation of profiles for 
QTR and soft proofing that I have not been able to find an answer 
for. I am on the PC platform and use the QTRGUI if that makes a 
difference for a response. I downloaded the instructions from Roy 
Harrington's site and seek clarification on the following:

1. When printing the Target-51.tif, I assume that I am using QTR to 
print the target with the paper and DPI settings that I wish to use 
and I should just pick one of the curves and set it to 100 for the 
output with no blending.
2. Using the same paper type and DPI setting, I do this for each 
curve for that particular paper.  When I'm finished, I should have 4 
printed targets: Sepia, neutral,carbon, cool.
3. I do the same for the next paper type that I wish to profile.

My questions are:

1. I usually let color targets dry down for 24 hours prior to 
profiling.  Must I do the same with the UT inkset or is a half-hour 
to an hour sufficient?
2. Is there a time differential between Glossy and Matte papers for 
dry down?
3. Should I spray the Glossy target as has been suggested for final 
prints? 
4. How does one softproof a blend?  Does one do this with layers and 
then just adjust the opacity?

Thanks in advance for your responses.

--Joel Turner