We hear a lot about the details of a cross-country ski racer’s day on race day, but what about those four or five days in between? What do World Cup racers do then, in the middle of the week? FasterSkier Norwegian contributor Aleks Tangen ventured to Lillehammer on Wednesday and Thursday to find out. *** LILLEHAMMER, Norway — The first mini tour of the World Cup season starts today — Friday — in Lillehammer. A year ago at...