Combine 1 1/2 cups vodka, 1/2 cup Pimm’s No. 1, 1 cup fresh lemon juice, 1/2 cup each lime juice and honey, 2 teaspoons hot sauce and 1 scant teaspoon coarsely ground pepper in a large container. Cover and shake, then refrigerate at least 1 hour. Shake the vodka mixture again, then pour into a pitcher filled with ice and lemon and lime slices. Stir in 1 cup chilled lemon-lime soda.