The mentalism effect looks interesting and I can see how powerful it can play out in real life, but the preview video seem be a little misleading due to some camera work. So the question is, how examinable are the 2 cards after the reveal? In other words, will there be some clean up work necessary prior to handing it out? Not that it would make it a poor effect because cleaning up is usually a part of any good illusion, this is more about having a little more information before deciding to purchase. Thanks!