I just got, "Deep Guilt Aces," and it looks terrific (at least my wife likes the effect )

One idea I have for it in close-up situations is to use it as a test of a spectator's magical ability. I could say to the spectator that if he/she passes the test, I will use him/her as an assistant sometime during the performance. Then, I would do the effect, pocket the deck, do some other effects and come back to card tricks later in the performance, at which point I would again call on that spectator.

Perhaps some of you would be willing to share how you use the effect in a routine, to get my brain going about how to incorporate it in a routine.

Thanks.

Richard