The 2002 Cabernet Sauvignon Marston Vineyard shows blueberry and black fruits with cool minerality and good acidity. Its always a fascinating education to taste through these component parts, but the resulting blend that Ed Sbragia puts together, the extraordinary Private Reserve, is one of the great Cabernet Sauvignons of California and he has fashioned a succession of beauties since 1991. In fact, there are two gorgeous ones in the market, the profound 2001 and the flamboyant, exotic 2002.