Thanks Mike. I did contact them and while waiting for a reply I posted here as well.
When you say profile do you mean ICC colour profile? To clarify, I'm not looking for a colour profile, the HP z-series takes care of that on its own. What I'm looking for are optimized printer settings for this material, like those at the link I posted.
That said, having spent a while messing with it, I see now that there's really not much I can adjust. The ink density was my biggest question, but I see in my settings it's already at 100% and the prints seem ok. Gamut is as high as it'll ever go on this material lol.
The only setting I think I need to change now is the platen height. The paper preset I chose as a starter was for normal stock thickness, bit it looks like Art Peel needs the high platen setting. I'm getting the textile bubbling away from the backing in places, and got a feed crash near the end of the roll where it bunched up badly.
The tricky thing with this printer is that you have to choose a standard paper preset as a starter point for a new material, but some settings will be locked (unchangeable) depending on the preset you pick. And there's no preset for somethin like Art Peel. So it becomes tedious trial and error to find a preset that lets us set the options we need. Ah well...
Cheers