In a bowl, combine 2-1/2 cups flour, sugar, yeast and salt. In a saucepan, heat milk, water and shortening to 120°-130°. Add to the flour mixture. Beat on low speed for 2 minutes; beat on medium for 3 minutes. Add enough remaining flour to form a soft dough. Turn onto a floured surface; knead until smooth and elastic, about 6-8 minutes. Place in a greased bowl, turning once to grease top. Cover and let rise in a warm place until doubled, about 1 hour.
Meanwhile, in a saucepan, combine 1/2 cup butter, brown sugar and corn syrup. Cook and stir over medium-low heat until sugar is dissolved and butter is melted. Pour into two greased 13x9-in. baking pans. Sprinkle with pecans.
Punch dough down. Turn onto a floured surface; divide dough in half. Roll each portion into a 12x8-in. rectangle. Spread with remaining butter to within 1/2 in. of edges. Combine sugar and cinnamon; sprinkle over butter. Roll up, jelly-roll style, starting with a long side; pinch seams to seal.
Cut into 1-in. slices. Place rolls, cut side down, in prepared pans. Cover and refrigerate overnight. Remove from the refrigerator 20 minutes before baking. Bake at 400° for 20-25 minutes or until golden brown. Invert rolls onto a serving platter.
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