Pierre Tardivel looks to have had some nice conditions for the south face of Mont Blanc du Tacul on the 24th May, photo report @ picassa
https://picasaweb.google.com/pierretardivel74/MontBlancDuTaculFaceSud?feat=content_notification#
Not a first descent for Pierre for a change, the couloir was skied in 30th May 1982 by Benoit Chamoux and C. Gauthier and apparently skied by JM Boivin without the rappel on the 14th March 1985.