sssssshhh!! Michael...don't tell everything you know. Platine, COT320, Platinotype (aka Cranes Cover Stock), all nice papers...Have also found that I like Rising Stonehenge (a lot) for VDB. As the others have mentioned, it comes down to using a "good" paper...a lesson I learned from Jorge and Mateo early on, since my first venture into alt process was Ziatypes on Cranes Kid Finish...nice paper, but just a bit thin and not good for a novice to start on.

There does seem to be some difference between Arches Platine and COT320, but not sure I could tell you what they are. Have fun....and try to keep the our secrets...