Datacolor User to User Support Group.

I am using a non-Epson paper (Merlin from Hawk Mountain) and I have 
profiled it using PrintFix Pro.  The problem I have is that the 
density of the print is not as much with the PrintFix Pro as that 
with a canned profile from the paper vendor.  I have printed a test 
target (from Fuji)using the two profiles and the exact same settings 
for intent and driver paper settings.  Both images look like the soft 
proof images on my screen (which is calibrated using a Spyder2 Pro).  
The one from the vendor has colors that are deeper - it is especially 
noticible in the gray scale in the print.  For reference, the printer 
is an Epson SP4000 with Epson inks and I am using relative 
colormetric as the intent with Photoshop controling color 
management.  Both profile use the Epson Smooth Fine Art as the paper 
setting.

The PrintFix profile was created from 729 patch advanced target plus 
the gray scale target.  Is there some way to get increased 
color/black saturation with the profile I am creating?  Either the 
vendor used another profiling system or made changes to the profile 
which allows it to print deeper, richer colors and to have it work 
with soft proofing.  I am printing the target as is with no tweaks in 
PS other than designating the profile when printing so there is 
something to do with the profile that is making the difference.

Thanks,
Rollin