Rolling is not recommended with gloss canvas because water based coatings are STRONG solvents for glossy canvas coatings. It takes less than 10 seconds for an image to pretty much dissolve under the roller, and that's no exaggeration. Don't bother even trying.
And even with HVLP you have to be careful. Put down a very thin "tack" coat first, which should dry in a couple minutes tops. Then lay it on thicker. But the thick-as-molasses, 2 pass technique I have been using with matte canvas is not recommended. Will elaborate sometime. One needs to be finesseful. Bull-in-a-china-shop behavior may be ok for these forums, but not for gloss canvas.
Have been knee deep in glossy canvas technique for 3 difficult days. Which is not what I need with two shows in June and very little stock.
Solvent sprays work great with zero melting and very forgiving characteristics, BTW. Solvent coatings have always been better, too bad they can lead to brain death and sudden, startling explosions.
But OMG, Crystalline is just beautiful! I'm getting colors and d-max and general tonal gorgeousness on canvas I never imagined I could. Baryta move over. And also I'm seeing detail I never imagined would come out. But, ahem, it could be a little more chemical resistant, which is sort of like criticizing a miracle. But definitely worth some PITA factor. Honestly, I can never go back to matte, particularly for images with red, green, blue, cyan, yellow, or magenta in them. Now if Epson would just lose that goofy pebbly surface, there would be two great glossy canvases.