In the Talk About Tricks DVD vol. 1, Paul Cummins performs Punken Droker, after that, he separates the blacks and reds and shuffles the reds together face up and face down, and same with all the blacks. Then at the end of the trick the deck is back to a mixed up black/red all face up condition. They don't explain it. Does anyone know what it is called or where i can find it? Any help would be appreciated.