This thread prompted me to look at this trick again to see if I liked it. It has a playful, puzzle-like quality that appeals to me; I like it. However, I think this trick will work best when performing for analytical thinkers because it is illogical.

Here's a video of Harry performing the trick:



Tom, I also like the way you perform it, too:



I'd sell the trick as the double transformation (front and back) of two playing cards. I'd say something like, "***, I've ruined another deck!" after revealing the duplicate. Seeing two cards with the same suit and value is shocking for a lay audience; as magicians, I think we forget this.

Reproducing the Ace suggests you were using three cards all along. I would not do this, but it seems to work well for you, Tom.

Marty