I could deal with these particular extra cards.
But what the hell were they thinking printing up that huge stack of useless cards with the dark gray logo on one side?
If you're gonna print extra cards, at least make one side white so that we can make custom cards out of them.
I use them all the time for custom cards, I'm not sure why you think one side has to be white to use them that way.
I print off the custom cards so that I just have to slide them into a sleeve with one of those dual sided cards and it works out just great.
I wouldnt want to try and write or draw on a white side of a card to make a custom.