For completness sake, here's my observations after making the climb (btw, thanks to my great partner Averagewhiteboy
)
We took the traditional line straight up the crack/gully from the U-Notch; to the middle section horizontial ledges and boulders; all the way south into the (small) notch formed by the summit ridge and the large monolith sticking up in the air; then up (eastward) the summit ridge.
All pretty straight forward, and matches very closely the written beta and pictures, that all of you have provided here on S.P. ("thumbs up" on that, as always).
My opinions on the classifications: crack/gully = 4th class; middle ledges = 3rd class; summit ridge = a few low 5th class moves, remainder = 4th class.
I would suggest not to take the summit ridge too casually. The climbing itself is of course not too difficult. But it seemed that the most difficult moves matched up against the largest (fall = death) exposure. Also the ridge is at least a 40-50meter climbing distance - a bit longer than I had expected. And of course the climbing is at 14,000ft elevation.
The lower crack/gully really only have 1 or 2 moves (at the very bottom) that are exposed. So if you make 20 feet or so above the U-Notch your difficulties are much less until the summit ridge.
As far as the rappels - we did two: one from about 1/3 of the way down the summit ridge onto the horizontial ledges section; one from the top of the crack/gully back to the U-Notch. The summit ridge rappel was a very good rappel station (by alpine standards). However you need to look closely
for this station as you descend the ridge, it is a bit down
off the top of the ridge and could be missed if you are
not looking for it. The bottom rappel is less nice - the
station is not as bomber (in fact we rigged our own new
alternate rappel anchor), and also the beginning of the
rappel is low angle down scramble before it gets vertical
for the lower portion. Both rappels went fine with a 30meter distance (i.e. a single strand of 60m X 7.7mm doubled over). Last note on the rappels - we noticed
only these two rappel stations. They were the ones we
needed, and were in the right places ... but as of the time
we climbed there were not any other rap stations (i.e. not
may different options/stations as has been the case in
the past).
My opinion on downclimbing vs. rappeling: to downclimb you want to be VERY solid at the grade AND the altitude, since the most difficult downclimbing moves come at the most critical exposure locations.