I recently started using a Kunst and Papier 35% cotton sketchbook I bought some time ago..and am EXTREMELY disappointed....the paint doesn’t move at all..just done a few swatches comparing it with 100%cotton paper.....and just don’t want to use the Kunst and Papier one again, particularly disappointing as it’s Fabriano. Saunders Waterford do 100% cotton sketchbooks....but they have paper that is too creamy for my taste