I use Canson..heavy weight..can't remember but will check when I get home..( might be tomorrow before I get back to you though)..I also like hot pressed paper ( which is smooth) ..If I am not mistaken I have 140lb weight ..which will take a good bit of water and lifting and scrubbing if needed without deterioration and pilling up..oh and buckling..paper buckle drives me up a wall. That is what I use for stamping..for larger pieces of watercolor art..I like a 300lb weight but that is heavy and will cause your cards to weigh a ton.
My best advice is to try out a few papers and see if you like them..Canson, and Strathmore are two goods ones to start with. I would be happy to mail you a few sample pieces of what I have. It is very frustrating in the begining to need "something" and not know what the heck it is get it and it was wrong..color..size..etc..LOL ( ask me how I know that
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