I have two Epson 1400 printers here, both with Sawgrass Artanium ink and both need to use different profiles. The older printer (bought in 2007) can only use the Sawgrass "Artainium UV+ 1400 v1.icm" profile while the newer one (bought in 2010) has to use the Sawgrass "ArTainium_UV+_1400-1410_RGB_v2.5.icm" profile.
If I use the "v1" profile on the 2010 printer, or the "v2.5" profile on the 2007 printer, I get radically different results. The only way to get accurate colours was to abandon the Sawgrass profiles and get Paul to make some new ones up for me.
Likewise, I bought an Epson B40W to use with Sawgrass Artanium inks. When I used the Sawgrass profile, the prints were hideously "green" and "flat". I asked for a newer profile, but there wasn't one available. I was going to throw the printer away, but I got Paul to make up a custom profile and suddenly all the colours were accurate and vibrant.
I know I'm in the minority and, chances are, that going for an approved printer with Sawgrass ink and profile is likely to work out just fine for you, but there are exceptions to everything.