In reply to Tom Ripley Mountain Guide: I did this three years ago. One of the best routes i've ever climbed. Did it in one long day, about sixteen hours climbing and about six hours to walk off and back round to the refugio.
Some of the positions are fantastic.
The grades and numbers are always a bit misleading on these types of routes. I found the top 300 metres to be the hardest, but on paper these are probably the easiest. These pitches are up big chimneys and corners and were running with water. Technically straightforward but with pro not so good, very wet, and in places loose rock, and you've already climbed about 800 metres by then, it feels hard.
Though like I said it's a great route. I want to go back this summer and try the solleder or messners 'friends route'.
Dan