You'd think after a week of tasting some 500 wines, I'd be running away from the stuff. Aversion therapy, I think they call it.Not a bit of it. Instead, my palate is like an athelete's body, finely honed by an intensive training regime, and working with even greater precision and discriminative power. [Deliberately silly, this bit.]Two prejudices to face head-on, tonight. First, that Marlborough Sauvignon Blanc is dull and predictable. Second, that all Pinotage is vile, filthsome stuff. Both...