Preheat oven to 375. Unroll dough onto lightly greased rectangle stone; roll dough to edge of baking stone and set aside.
Cook bacon in a 10 inch skillet over medium heat until crisp; remove bacon from skillet and drain on paper towels.
Combine ketchup, sugar, vinegar and barbecue rub in medium bowl; mix well. Spread sauce over crust to with 1/2 inch of edge. Crumble bacon; sprinkle bacon and water chestnuts over sauce. Sprinkle cheese evenly over pizza. Bake 20-22 minutes or until cheese is melted and crust is golden brown. Remove from oven; sprinkle with parsley. Cut into squares and serve.