I'm not sure why the bad reviews but I thought I would offer a contrasting experience. I have been
using and abusing my copag 310 slimlines for a good few days now. They faro well, they shuffle well.
The edges are soft and supple right out of the box. They make pinkie counting easier (subjective)
than regular bicycle stock cards. They have stayed relatively warp-free despite a lot of shuffling.
Also I should add they are much less affected by humidity than anything by USPCC in terms of
warping.
The con is they don't fan as easily anymore and clump a bit, but that's true of
any cards I have used after a while. When they were new they fanned beautifully. It might be my
technique too as I am not great at fanning at the best of times.
This isn't a plus or a
minus but they have a very different feel than USPCC cards. Almost leathery. It's hard to describe
but is definitely interesting.
Overall when you consider the price definitely a great deck.