Thanks for that David, and welcome to Talk Magic. I have only ever heard good things about your effects.
As far as I am concerned you are one of the great innovators of magic (and beside anyone who has David Regal as a friend can't be all bad).
Just out of interest, I believe there is a similar effect as described in this thread supplied with the Mini- Black Tiger cards. If I remember correctly The effect is that you take out one deck from the box - but it doesn't match the box (ie a normal deck from a black tiger box), you then take out the regular black tiger cards, and finally, you take out a deck of the mini cards. All decks are real decks.
I could be wrong, but that is how I remember it at the moment...