If I'm doing a Card at Any Number routine, it's generally going to be a close-up situation. Yes
there is a utility sleight that is taught well in this tutorial, but all the practice in the world
isn't going to make this ideal for close up (especially if performing for more than one
person....though even for just one would be tough).
The angles are extremely limited and
looking back at the demo (after purchasing), I see why the shot switches to a second camera angle at
certain points. If the angles for this trick can't survive a single stationary camera shot, I don't
see how it's to be performed for an actual close up audience. I honestly have to wonder if the
positive reviews for this effect have actually tried this for an audience.