In reply to benp1:
I walked up Val de Tre les Eaux from Le Couteray yesterday then over Col des Corbeaux & back down to the chalets at de loriaz over the Col de Terrasse.
Not exactly on Buet but underneath for a fair way & encountered snow from 2300 mtrs, knee deep at 2400!
Visibility wasn't great but the ridge of Buet was covered in snow, obviously wind blown.
Be aware though, I definitely heard either a cornice break off the north ridge of Buet or a avalanche purge the face, not sure which as it was so misty.
Lots of wind blown snow about from the last few days, but this last route could be a great alternative rather than Buet, its a great day out..