Me and my friend were joking about this recently. When do you call a card manipulation a flourish or a disply of XCM. Well the way I see it is that a flourish is flashy card manipulation that can have just basic utility use to the performer. A few examples are Fans and Spreads. They are neat to look at but are also perfect for having s spectator pick a card.
Now XCM is much further beyond this. This type of manipulation is so elaborate and complex that its rediculous to think of using it for a card trick. Its an almost "pointless" trick for anything besides looking super cool. A few examples would be the Smooth Opener and the Cobra Cut. First off opening the box with the SO is so insane its bizarre. And if your playing poker and the dealer asks you to cut the cards, are you really going to use the CC (I mean really!)? Its actually funny when you think about it.
