Black Copag cut cards are what I'd recommend. A bit expensive but worth it IMO. Ebay has them.
Yeah those are the ones I meant, didn't even know Copag makes a different black these days... Good thing I have enough of the ones with gold text to last a lifetime :I'll further quantify this as the black Copag cut cards with the gold lettering (not the white lettering and red spade).
Confirmed at S@P. Also the debate of using one cut card vs. two rages on.
Solution? Use one "cut card" and one "cover card." :