The 2012 Proprietary White La Proportion Dorée is a blend of 66% Semillon, 32% Sauvignon Blanc and 2% Muscadelle. It reveals an exquisite perfume, a stunningly full-bodied, multidimensional mouthfeel, and many of the same fruit and flowery characteristics found in the 2013. How long it will be drinkable is debatable since this cuvée has not existed that long, but it appears that no one will let it linger in their cellar given how compelling it is at present. It will definitely keep for 3-4 years, perhaps a lot longer.