Thanks.
I am also surprised that Canson recommends to choose PERCEPTUAL las the rendering intent and not Relative?
I don't know why they do that. Have they seen your image?
Use whichever intent works best for your image and ignore that recommendation.
But you would expect PK, it is a glossy surface paper. Anything but a true matte paper will require PK: gloss, semi-gloss, lustre, satin, silk, pearl, semi-matte, photo-matte, they are all glossy papers. Something like Canson Rag Photographique would be MK.
Brian A