By Lenn Thompson With a handful of local winemakers changing addresses this summer, Long Island wine lovers are left to wonder how the changes will play out in their favorite wines. Rich Olsen-Harbich has made some of the North Fork's best sauvignon blanc for years, but now that he's moved on from Raphael to take over at Bedell Cellars — where they don't make a varietal sauvignon by the way — what will come of the Raphael First Label Sauvignon Blanc? We'll find out in about a year, but Raphael's new winemaker, Les Howard, has made some nice wines with…