LegalE: We summited on Saturday, June 6. We found a broken Yaktrax on the switchbacks! I bet it was your friend's! Small world. We put it on the rocks above the trail, but didn't figure anyone would come for it since it was broken. It's there if your friend wants to get it I agree though - microspikes are the order of the day, yaktrax probably won't cut it (though at least your friend made it with them).