Single-site catalysts useful for polymerizing olefins are disclosed. Task of the invention is to establish a method for spot coating of printing substrates also applicable in large size printing presses. The method further includes programming a controller to select a randomly-selected outcome from a plurality of outcomes in response to receiving the wager input. 1\u2266\u0394\u03b1\u2266\u22120. A plurality of miniature members, each associated with one self-propelled member are placed on a upper traveling field extending above the lower traveling field. Herein, the port control systems each transmit to the arbiter an amended weighting selected from a Table using a round robin method.