For nearly a decade, the Americans have benefited from early snow at the Copper Mountain Speed Center.
American leaps from 14th after opening run to best World Cup regulars.
Auden Pankonin clicked into his Head skis, pulling his goggles down over his Shred helmet.
First athletes ever to be named posthumously to the U.S. Ski Team will be honored Saturday.
O'Brien, Radamus, Lebby, and Kenney claim national U18 titles at the opening week in Colorado.
The gold medalist says she'll shift her focus to tech in the run-up to Aspen.
On Friday, the Americans trained alongside the Swiss, Germans, Italians, French and Norwegians.
Lindsey Vonn downplays reports that she is considering making a start at the Aspen World Cup Nov. 29-30