American Inkjet systems AIS ultra wide gamut inks

Hello,

Did anyone try ultra wide gamut inks from American Inkjet Systems ?

http://www.americaninkjetsystems2.com/

They produce inks for Epson printers, and some other wide format printers.
I plan to refill the Epson 4900.

I wonder if I can get very accurate colors with these inks, if I make a custom ICC profile with a spectrophotometer.

I print on plain paper so maybe the gamut will not be too exaggerated, using these more pigment loaded inks might be beneficial for...

American Inkjet systems AIS ultra wide gamut inks