Not quite sure of the exact handling but it does say "All the necessary cards are provided, custom-printed by the United States Playing Card Company. ". I have a feeling I know how it works, but I'm not sure how to explain without giving it away. I'm just pretty sure the 10 he shows are gaffed.
"On this DVD, you will learn David Solomon's personal handlings of Thoughts Across, as well as two bonus tricks: Double-Crossed Switchcraft and Pure Vice-Versa. Both bonus tricks can be performed with a borrowed deck." that may help you find it just google and you might find it