While the online registration system for the 2013 United States Bowling Congress Open Championships has been working smoothly so far, some Facebook and message board users did discover a fact that surprised them: closed off midweek dates in March 2013. That is routine, Jason Overstreet, USBC managing director of communications, said in an email. "We typically block off some midweek days early in the tournament that we know will be low demand," he said. "Having only a few teams on a given day...