Datacolor User to User Support Group.

I just got PrintFIX Pro and created my first profile.

I am using version 2.1 of the software as downloaded from 
Colorvision's web site.

This profile was for Epson Premium Glossy Paper printed on a HP B9180 
with paper setting for HP Advanced Photo Glossy (that got the best 
results with the Media Settings Check image). I built my profile 
using the High Quality 225 patch and Extended Grays targets.

The resulting profile is too dark, as seen in both the soft proof and 
printed results. There is a bit of ink pooling in the dark browns.

I experimented with the brightness slider, and found that an 
adjustment of +2 gave me the good results. This makes the monitor 
display about the same brightness with soft proofing turned both on 
and off. And the prints look great too!

So my questions are:

1) Why was the initial profile too dark?
2) Is this likely to happen with other papers as well?
3) Is there any mistake I might have made that would cause this?
4) Would using the Expert target have helped?
4) Is there anything I can do make my initial profiles come out 
better without the need for tweaking the brightness?

Thanks for the help!

Dave