Italy's Casse tops second Olympic downhill training
In bright, sunny conditions, Casse clocked 1min 52.85sec down the Stelvio course.
Italian teammates Florian Schieder and Giovanni Franzoni were the next fastest.
Swiss medal hope Marco Odermatt came in 2.72sec off Casse's pace, one of many racers who eased off the gas in a bid to find their correct lines ahead of Saturday's downhill race.
"The piste is really good, getting better day by day, also the crew work well and I hope it stays in this condition because I like the snow, I like this slope...