BIG SKY – It was Valentine’s Day and Rob Leipheimer was loving life. At 1 p.m. he had just beat his Lone Peak Tram all-time record of 27 laps. “I was doing five laps and hour,” he said. “I was thinking this is a really good pace.”Recently, Leipheimer, 50, was talking to Luke Stratford, who some believe held the record for most tram laps in a single day, meaning between 9 a.m. and 4 p.m. when the public has access to the slopes. Stratford recorded 31 tram laps back in 1998.