Chung Ching (C. C., Charles C.) Wei (July 12, 1914 – February 20, 1987) was a Chinese-born American businessman who created the Precision Club bidding system in contract bridge.
[4] In 1963, "with assistance from Alan Truscott"[1] Wei developed the China bidding system, later called the Precision Club.
With two returning players and four new ones, Taiwan was losing finalists again in 1970, and these strong showings brought Wei and the Precision Club great recognition.
Its strongest pair, Giorgio Belladonna and Benito Garozzo, used their Super Precision version through the 1970s and led Italy to three more Bermuda Bowl championships 1973 to 1975.
According to Truscott, Precision systems constituted "by far the most popular non-standard method throughout the world" at the time of the inventor's death.