Had a good tasting and lunch with Vanya Cullen. She's gone biodynamic, which is pretty rare still in Australia, even though in Europe there are perhaps 200 estates certified (that's just a guess...) and many more who do bits and pieces of biodynamics, or are in conversion. Have the wines improved as a result? Vanya thinks so. I can't comment, because I've never tasted more than a handful of older wines. The current releases are fantastic, though: wines with real interest and complexity, and which are potentially long lived.