The concept of the Birthday Detector is excellent -- if it only worked as described. Perhaps the
product needs broken in or perhaps the fault is mine, but I can't get the gimmick to work so that I
can obtain the peek, despite many, many repeated attempts. I can't go into any detail without giving
the secret away, but this has the potential of being an excellent product if I could only get it to
work the way it's supposed to, As a result, I could only use the Birthday Detector for pre-show
work. However, the appeal of this product is the ability to use it in real time, rather than
pre-show. Maybe in time I can get it broken in enough to work (if that's the problem), but I'm not
counting on it. Hopefully, you will have better luck than I.