This time I attempted to summit via the SE Ridge. There were a number of failures here. The striking surface on my match box was completely worn out, so I couldn't light my stove in the morning. I also ran into navigation problems again, and I turned back at about 9,000'. Even if I had managed to get higher, I heard that the last part was inaccessible without crampons, which I didn't have.
You can see pictures from my previous summit attempt here and a later summit attempt here.