let me tel you a funny story (not my only trip up never sumited but I intend on going every weekend until I do. Well I didnt make the summit, but I did make it to muir or close to it. It was 10:10 pm (mind you I left at about 1:00pm crazy wind and cold white outs etc) by the time I made it to 10100 plus feet and was tired and cold. (being -22F I found out later) I dug my snow cave and unpacked my sleeping bag and found that my backup water bottle had some how sprung a leak and gotten my sleeping bag wet along the whole length of the zipper and baffle. It was soaking wet, I had to use my belay jacket and all of my extra cloths to keep warm, I even had to use my stove at one point to stay warm but, aside from all of that, I made it out with only minor frost nip on face and hands and on my toes no doctor visit needed so all and all it was a horbile trip but it could have been alot worse, and it proved at least to me that I am either phoney tough or crazy brave.(and I love it when it sucks and god I wish it would suck some more.)