From MagicPedia, the free online encyclopedia for magicians by magicians.
Underground Transposition is slow-motion Aces & Kings Transposition created by Brother John Hamman in which four kings and four aces change place one at the time.
First published in Jon Racherbaumer's magazine Kabbala magazine (Vol. 1, no. 7, 1972) and later in The Secrets of Brother John Hamman (1989).
It was later popularized by Paul Harris when he published his version called Re-set in Super Magic (1977) in which he added the kicker of having them all change back.