I skied fresh pwder, and some irregular snow, not really bumps but not smooth either. The skis seemed very good at absorbing irregular snow. I am sure they would have been good in bumps. We skied mark malu, which is near regulator, and skied the ungroomed. The skis worked really well. Regulator was covered with powder the day I demoed the Cold heats, so I wouldn't have had much of a shot at ice there either.