I've mostly used my 9 year old Atlas 1030's on flat ground, some side hilling etc., in some powder and hard pack. This last weekend I was met with sun softened snow, crusty snow, crusty snow with hard snow underneath. It might have been ok, except for the steepness, where crampons would have been nice. At one point, I almost turned back as I could not get enough traction and fell forward and then coming down, had to hit some rocks to make my way for a short distance until the mountain leveled off some. Quite the snow camping trip, we did set up camp before attempting the steeper mountain., I was with 3 other younger souls. We were in Desolation Wilderness by Cathederal Lake, trying for Mt Tallac. I've only been up there once and that was 12-15 years ago in the summer. I now know the snow route and know I could make it over the ridge to Gilmore with crampons. Every little bit of experience adds up.