At the Global Gaming Expo conference in October 2012 SHFL debuted Mulligan Poker, a game developed by Michael Shackleford and currently only offered online by casinos using International Game Technology software.
Gaming consultant Michael Shackleford has also been critical of the UIGEA stating that the act has "undoubtedly depressed play" but has failed in its primary objective as "there are ways of funding accounts without using US banks, and millions of players know that".
Michael Shackleford, one of the world's foremost experts on the math behind casino games
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From October 2001 to February 2002, columnist Michael Shackleford obtained PAR sheets for five different nickel machines; four IGT games Austin Powers, Fortune Cookie, Leopard Spots and Wheel of Fortune and one game manufactured by WMS; Reel 'em In.