Hard to say if it was slabbing up high, but approaching/learning that from below felt suboptimal. with a bit more wind in the forecast higher, more exposed terrain could be a little skitchy. That said, below the first few inches down about 3+ feet it felt pretty rock solid....I don't know if the upper headwall slid during the holiday cycle, but it doesn't seem like it and it feels like it's fairly solid so deep slabs seem unlikely.