At least the only work on using the snap change with multiple cards is from the Buck twins. I can't remember the name of the original effect (which involved spliting a three into an ace and a deuce and was featured in Genii), but an updated version is "Twin Split" (where a four is split into two twos, then the two is split into two aces). Again there might be older work along these lines, but these are the only ones that I know of.
Last edited by John Wilson
on 09/27/09 05:13 PM, edited 0 times in total.