Sandy, sounds like you are already well on your way. I made some little test prints using the same image of 100% of each of the 4 provided curves that come with the 3800 qtr setup, and with those to ponder students were quickly coming up with curve combinations for their own prints very quickly and happily at a workshop last year, in a few short hours.
Each of the sets tend to be just a hair too colorful, so you just have to throttle them back a bit with the percent settings...
If you are using an unsupported paper, pick a paper whose curves seem to work well anyway, and you can make a qtr profile in about 10 minutes to bring it into line on your paper if necessary.
QTR is a great tool for printing B&W with the OEM ink.
Tyler
http://www.custom-digital.com/
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