I find on the 9900, 24 and 36 rolls, the last 10 feet or so are pretty worthless unless you can drymount with a press due to the imprints that show up. It also appears to me that Canson may have slightly changed the paper texture a bit. I have 2 rolls left from a big purchase 2 years ago and I find the surface on these rolls overall smoother, but also easier to damage. The rolls I have purchased in 2015 seem to be hardier to scratches and the like but you still have the imprint issues on the last 10 feet or so.
I find I also see less bronzing with the Canson Baryta than with Platine, wish it was the other way as I still prefer Platine.
Paul C