I was very excited to perform this trick. However, upon receiving the deck of cards, I couldn't
fathom how obvious the markings are (of physical nature indeed) and without a shadow of a doubt, any
unsuspecting (with 0 knowledge about any magic) viewer will decipher what's going on the moment
he/she holds a bunch of cards( for the purpose of shuffling).
It's not even about the cost
of the trick, it's just that this will get caught.