Four regional champions have been determined, and two more (Omaha and Salt Lake City) are scheduled in the days ahead, as the countdown begins for the 4th annual SPEC MIX Bricklayer 500 competition to determine the nation’s best bricklayer. The regional champs, who won a trip to Las Vegas and free entry into the finals, plus another 14 or so of the country’s top masons, will face the wall during the 2006 World of Masonry to crown the winner.