Digital BW, The Print

I know I could email Roy directly but he must be a bit busy with new
Win XP users and I imagine others might know the answers too.

I'm a new Win XP QTR user and am getting some very nice prints with my
2200.  One thing is I'm using my 2200 with MIS Eboni black ink and not
Epson OEM Matte Black.  The prints from QTR look fine however, perhaps
they are slightly cooler than otherwise since Eboni is not at warm as
Epson Matte Black.  Any issues using Eboni with QTR I might be aware
of, or if they look fine do not worry about it?

Next, for the EEM profiles I see one called CoolSe.  How is that
different than the Warm, Cool and Sepia EEM profiles?  Also how and
why is the "neutral" profile using Warm AND CoolSe.  How about a
Neutral profile for PR?  I only see Cool and Warm for PA paper.

Next, I see that for PR we should use the Premier Art profiles.  What
are people's experiences using other papers than those listed so far? 
I've tried printing on Kayenta Photo Matte using the EEM profiles and
Eclipse Satine using the Premier Art profiles and they look pretty
good.  Would more specific profiles/curves make a huge difference? 
How are the profiles/curves created?  By Roy?  Or can we make and
apply our own?

Thanks,

Richard