I don't use Rag 210 very much, but the Canson 8300 profiles seem fine, no dramatic improvements over mine although my profiles do seem to produce better deep shadow detail. That might be because I favor moderate inloads whereas the Canson profiles tend to lay ink down much thicker in the dark areas. The Canson profile probably gives a better d-max than mine, but mine have better separation in the darks. According to me.
But look, don't want to mislead, it's still a matte paper, OK? Although under glass you could hardly tell. And it also comes in a 310 weight that might be a lot more curly, so just take note.