In reply to dan ely:
You could place a friend 5 or 6 if you took one. I have done it two or three times and not taken one. it is a bit bold, but not too bad really. It is, however, a burly committing E3, especially as the start is unlikely to be really dry (its been pretty moist when i've done it, even late in the day)
it is also an utterly amazing route, and a lot of fun: enjoy!