This is just an overrated, actually unpractical product. There was a big talking about it (wizard
product review) but only for advertisement. This product is not good!! It is so obvious, if the
spectator isn't blind he sees that the box looks soooo unreal! It is so big, makes sounds, you have
to be very careful about moving it, you can't lift it off the table, so many limitations! Don't get
this, get a deck shell, or switch the deck in your pocket in the off-beat, which is the easiest way
to do a switch. Overpriced, overrated, you won't use it, maybe on tv or in a parlour show, where the
people are not close up...
As magicians we tend to be quite paranoid about the details. This works. It may seem obvious, however it is surprisingly innocuous. I'm not big on risky methods, but even I am comfortable with this. People just don't pay attention to this.