Did the traverse taking up a couple of friends in 1964. The ridge to go to Mont Blanc du Tacul was so rotten (it had been far too sunny for too long so there was no snow nor ice at all to solidy the rocks) that I preferred to unrope. Better one or two deads than 3!
Have to come back for the full traverse. We (with Menno) climbed untill the point chaubert and decided to return by abseils.Too much snow. Started at 2 o'çlock at midi camping and arrived at the col du diable at sunrise. SW couloir as approach.