Thursday’s ad is again for Pabst Blue Ribbon, this one from 1950. Showing an old-fashioned tennis player — is that Pancho Gonzalez again? — using a racket with just one string, the analogy they’re using is that playing that way is the equivalent of not blending your beer. Blending is great, but it’s not the only way to brew a beer, and it may not even be the best way to make a pilsner. But how about that outfit?