This looks so 'cool' so as somebody who just uses magic tricks for family and friends this could an answer to y problems when they all want to shuffle my cards etc. But having looked at this many, many times how am I going to convince my friends that it's the same deck when the cards start on top of the card box, then the card box ends up on top of the cards. I'm not asking to tell me how the trick is done without buying Cooler, but maybe some help with this apparent move that seems so obvious. Thanks. I really do have difficulty with most switches.