A folding structure supports a duct in a generally horizontal orientation, and permits sweeping and serpentine movement of the duct. The recirculation block assembly includes a powder paint recirculation block body having an intake flow passage directing flow to an applicator flow passage leading to an application flow control assembly and a return flow passage leading to a return flow control assembly. A pushing force is applied to the cooked substrate to expel the cooked substrate through the second open end. As the transport machinery and apparatus are advanced in the waterway, a path is cut through aquatic plant matter by the high pressure water from the nozzle, and, as a result, the waterway may be effectively cleared. The parameters modified include, but are not limited to, the power delivered to the input of the power amplifier, the DC power supply voltage to any stage of the power amplifier, and the current setting bias values. The lower die and the upper die being spaced apart and comprising a stacked die whereby any heat generated by the upper die is transferred to the substrate by the metal interposer.