by dat8962 » May 31st, '05, 14:15
Whether a card is forced or not before being signed, the value is that it often enforces in the specs mind that they are in control through having had a free choice of card, rather than having been given a card to sign.
It's sometimes what the spec thinks is happening, rather than what is actually happening. The more that you can do to eliminate the suggestion of a force, then the better the impact of the trick will usually be.
Also, the time that they take to sign the card, even for a few seconds is also an extremely good period of misdirection whilst you prepare for a DL etc.
Member of the Magic Circle & The 2009 British Isles Close-Up Magician of the Year
It's not really an optical illusion - it just looks like one!