Five bowlers have won two United States Bowling Congress Senior Masters titles: Tom Baker, Gary Dickinson, Pete Couture, Dave Davis and defending champion Dale Traber of Cedarburg. Only Baker and Traber still bowl a full schedule on the PBA Senior Tour so the eyes on history will be on them when the tournament starts Monday at South Point in Las Vegas. Traber, who won the event in 2009 and 2011, has a guaranteed spot in the bracket match play as defending champion, but plans to bowl...