
I have been using plastic cards for 18 years. I started with Kems and then tried Copags as that was the only option many years ago. I have a set up of almost every brand card made and actually just ordered two Kem setups this summer and last week after boycotting them since 2006.
Here are my observations and opinions:
- Kems are hands down the best feeling card on the market. I casino riffle when I shuffle and they shuffle like butter. Desjgns are second in feel.
-Kem cards tend to warp BUT Pre vs post
USPC is a myth. The worst warped Kems I ever owned were 2000 vintage pre
USPC. I also still own a setup of 2002 vintage Kems that never bowed. I have a set of 2006
USPC Kems that have a slight bow. There is not difference in feel between those decks.
-I bought a Kem set up this summer and have kept them in my finished basement only with dealer buttons between the case lid and the card and they are totally flat. I used them in play for about 14 hours.
-My Dal Negro and Cartamundi Acetates cards also are slightly bowed. The only material that stays dead flat is what Fournier/Bicycle, Guild, DaVinci, etc use.
-I have had Copags with HEAVY use. Non ever bowed but the ink bled while in storage for a while. Those are the only cards I ever threw out.
-My setup of Gemaco Superflex are slightly bowed. My Gemaco Monte Carlos (supposedly the same thing) are not bowed. Gemaco are hands down the stiffest cards and have the ugliest art. It's nasty ugly.
-My favorite art is Desjgn...by a HUGE HUGE margin. Second is a setup of Dal Negro Acetates (that have a bow) with colored faces on the face cards, then Kems.
-Desjgn are my all around favorite card (though I did have a deck the came bowed and was replaced by them. The new decks have stayed totally flat).
-I noticed that the newer Kems have a rougher texture which I like better. I'm hoping my new storage regimen will keep them flat. I'll report back.
-When Desjgn starts making bridge sized standard index decks in red blue and dark primary colors I will only buy them from that point forward.
Here is an old pic of most of my collection which I have sampled from. I have since added three set ups since this photo was taken.