Fournier 505's are definitely the best cards you can buy without spending a ridiculous amount of money, like with Jerry's Nuggets. They're very, very thin and fairly stiff. They have nice spring to them and it's hard to accidentally crimp or bend them. They have a plastic finish which is nice. It gives the cards more "traction" so they don't slip out of your hands s easily, and yet still can spread and fan virtually the same as an air flow finished deck with a little breaking in. They also stay together very well. They're pretty hard to find in the U.S. though. The only place I've found that sells them is a guy on Amazon. You can buy them there for $6.99 a deck. Oh, and he sells a bunch of utility gaff decks for the 505's for about 10 bucks, which is nice.