We did it last year during Labor weekend. Pretty much a scramble up along the right hand side of the unnamed pocket glacier (which I wanted to name "Used Diaper") until the sole gendarme. Place a wand there on the crest so that it is visible from the other side. It helped me in a debate with my partner which gully to climb back up after we rapped from the summit. The climb itself is neat when you climb all gendarmes. As Smoker said bring lots of slings. The last two pitches are easy climbing. If you run out of time (as several parties have) there are several ridges where you can rap. I remember that I saw just about on every ridge abondened slings. The climb was great, however, the hail storm and fog we had prevented us from the great views I was hoping for. (Although I took a same pic from my partner with the Boston G. in the backdrop just as in Nelson's book. About the rating, the notch is probably the most difficult. I noticed that if you do your traverse a fair amount below the ridge it climbing looks much easier.
This labor weekend I will be climbing it again. With me a group of 9 climbers will be camping in the BB and climbing that weekend several peaks. It's going to be again a damn busy party.