I believe with this type of method, the final revelation shouldn't be bang on what the spectator
said, so for example, if a spectator named 103 thousand, the final revelation should be 102 thousand
as it would create more effect in terms of realism.
Also, keeping the prediction at a
"near miss" takes off the heat of the spectators thinking it is a mere "trick" and with the right
presentation, a nice, strong reaction can be achieved.