Benton City, Wash.—Wine producers and writers have grumbled about numerical wine scores ever since they were first promoted by leading wine critics—Robert Parker’s Wine Advocate, the Wine Spectator and Wine Enthusiast. Now a group supported by 100,000-case Hedges Family Estate in Benton City, Wash., is trying to generate grassroots support to break the stranglehold that numbers have on wine. Supporters have published a manifesto at scorevolution.com and encourage all who agree to sign up.