Hi Paul,
I too enjoy making my own profiles. I don't know the workings of the X rite system; I use Profile Prism, but 99% of all the profiles I make, plus the ones that come from Epson or Ilford or Canon call for you to set the driver to NO COLOR MANAGEMENT.
In an Epson, there's check box for OFF.
See screen snaps.
I am showing the "look" of two typical drivers, an Epson R1800, and an Epson 7900 (wide carriage).
Both call for Color Management OFF

Next item is paper selection.
Try to match the type of paper to Epson's choices...i.e. Glossy to Premium Glossy, Semi gloss to either Prem. Luster or Epson semi gloss,   Matte to Matte....
Set output quality to BEST PHOTO or RPM
That paper selection will control the ink flow (don't over think the driver. Leave the rest in normal condition)

The most important thing to remember is that whatever settings you use... paper type, speed, DPI output, the same settings used when making the profile should be used when printing with the profile.

If you are using Qimage, remember to save the printer setup (SAVE, "P" button, NAME YOUR Setup, SAVE)
This will insure that recalling that set up will cause the correct settings to automatically be set for you.

Does X rite require printing a target? If so, be sure to use the preset TARGET PRINTING JOB in Qimage.


Hope some of this helps.

Fred