I like the idea of this effect... if performed smoothly, it's genuinely baffling. The problem is,
with the quality of this construction, it's very difficult to perform it smoothly.
The
negatives: the wallet looks and feels cheaply made. Besides the aesthetics, this makes loading and
unloading the envelope more awkward than it ought to be. My biggest problem is that the initial
set-up feels very insecure to me. The cards ought to be clipped or held in the gimmick some way,
rather than just sitting there. It seems like there's a very real danger of accidentally ending up
with more than one prediction in the envelope... or even worse, completely expossing the method as
you withdraw the envelope.
Like I said, good idea, but without modification, the
out-of-the-box construction doesn't provide me with enough confidence to perform this as-is.