Wolffer Estate's winemaker, Roman Roth, made some delicious and unique wines to commemorate the winery's 20th anniversary, and this wine the Wolffer Estate 2005 "Caya" Cabernet Franc ($40) is one of them (even if I liked the 04 a bit better). The commemorative wines are all named for horses in the Wolffer Stables and this one bears the name of Caya, a 16- year old Hanoverian Warmblood and a Grand Prix winner. This blend of 86% cabernet franc and 14% merlot shows ripe, intense blackberry and cassis fruit aromas on the nose, which are accented by vanilla, toasty oak and…