We are at Barranco Camp waiting for dinner. We are four days in and all feeling pretty well. Today's hike took us from 12,500' at Shira 2 camp up and over the Lava Tower at 15,180'. We are now back down to 13,100'. It is a bit misty and cold - we are basically in a cloud, but the days have been warm enough for the most part. Each of us hiked higher than we had ever been before and all felt way better than when at our previous highest point (some were Leadville, CO, others Pikes Peak, and various other CO moubtains). We take this to mean the whole aclimization thing is working. We start out summit approach Monday morning just after midnight.
The picture below shows a lot of what today looked like.