I became aware of the plot when I attended the "Dazzled" lecture by Alex Elmsley in the early '70's. His presentation of the "Fate's Datebook" just knocked me over. My problem was that I just couldn't perform it and give it its due.
I then started on my own quest to develop a routine that I was proud of. My "Fortuneteller's Book of Days" was the result. My original props cost me over $300.00 to prepare. I must say that the book (available from L & L, your fav dealer, or me) is quite a bargain at $20.00!
The routine is quite strong. I have not had anyone "tip" to the method. BTW, I do not do the routine as supplied with the book. That routine was designed for someone that has no experience in performing. It is an easy to do method that works, but I don't go to the bother of prestacking the necessary cards.
If you have any questions, please feel free to contact me, off-board (firstname.lastname@example.org