bmat wrote:To be honest it sounds like one of a thousand variations of a pretty standard effect. How long have you been involved in magic? I'm not about to go searching as I am not that interested in it. But there are most likely variations of the effect in Tarbel course in Magic as well as 13 steps to mentalism to name two. But you would have to read between the lines because the presentation is going to be different.
I was going to reply on similar lines. This is a classic effect, but one not done as much now, maybe because it's not 'sexy' enough for modern audiences. I saw something very similar when I was a kid, and there is a card trick which is a little analogous to it.