Mark the above comments are on the 8 color 9180 or Z 2100 , not the 11 color Z 3100.
I can't send out profiles , nor info yet, other than words. Others shouldn't either. The Z 3100 is still in the making. The inks are final but the software is still going forward. I just tonight loaded another firmware rev. Such is life with Beta testing. Any software or firmware changes render null everything that was done before.
I did describe the 12 ink Z though before in it's gamut projections in Color think from custom profiles from Canon 5000, Epson K3 from Bill, and my custom profiles (printed and measured in my classic i1 off line).
The gamuts of both Canon and HP 12 ink printers are becoming esoteric and the primaries are making what was always difficult to describe in words even that much harder. The Canon gamut is looking very nice in magenta to cyan transitions in and at 50L . Hp has some extensions here and there all in the light and brights especially a green that will keep a landscape photographer happy. Epson has a better color depth which as you know not the same as Dmax , nor contrast.
Also as you know any print within range of most prints we do any of the three HP, Epson, and Canon will produce a similar looking print. I laid out a bunch on a table yesterday , HP Z 3100, HP 9180, Epson 4800, and Durst (sorry didn't have access to a Canon at the time). All are good, all are sellable, all have excellent fidelity, color matches in control lighting etc. The only way to make the already excellent Epson look a bit worse, would be to use an image out of gamut for the Epson inks , where Canon or HP may be better . One thing that is certain , is the Gloss Enhancer is fantastic. A bit fragile though so normal print handling precautions apply.