Unless you are a very able and experienced Alpine climber do not, under any circumstances, go to the Tete Blance via this col. It is pretty much inaccessible now as the glacier has receded. I spoke to the guardian today, having backed off the col, and he said it's too difficult early season, and too dangerous when it heats up - loads of rockfall. Either go over the superior, or go up round the back.
Apparently it's been fairly inaccessible for 5-10 years. Pity my 2 year old guidebook didn't mention that...
"After the first glass, you see things as you wish they were. After the second, you see things as they are not. Finally, you see things as they really are, which is the most horrible thing in the world."
--Oscar Wilde on Absinthe