In the 1930 season, the league changed the passing rules, effectively eliminating offsides. The Stanley Cup champion Bruins took especial advantage, breaking many scoring records and recording the highest winning percentage the league would ever see, unsurpassed as of 2012. Leading the charge was the Dynamite Line, as Weiland led the league in scoring, Clapper finishing third and Gainor finishing ninth; Clapper's goal total of 41 was the third most in league history at that time. The Dynamite Line scored 102 of the Bruins' league record 179 goals, as many as last-place Pittsburgh managed. While Clapper scored four goals in six playoff games, the Bruins were shocked in the Stanley Cup finals by the Montreal Canadiens in their best-of-three series.