First day: Luckner Haus (1950m) - Studlhutte (2801m) - Erzherzogg Johann Hut (3454m)
Second day: Erzh. Joh. Hut - summit of Grossglockner -Erzherzog Johann Hut - Studlhutte - LucknerHaus
Strong winds & no views from the summit at all; still a great trip!