Is there a new pecking order for cult Napa Cabs? Well, the case could certainly be made after this past Saturday’s Premiere Napa Valley: the part-auction, part-networking-event, part-total-insanity in which small, selected barrels/lots from some of Napa’s most celebrated wine producers are auctioned off to collectors, buyers and importers, as special, once-in-a-lifetime future bottlings. The…