A gun whose barrel is connected to a breech ring, and is seated to be displaced in a cradle barrel. The method includes mounting a plurality of blades in a disc to provide a blade assembly; mounting the blade assembly in a grinding apparatus; aligning the plurality of blades in a predetermined position using compressed fluid; and, grinding the blade tips. A coarse registration operation determines initial estimates of registration parameters associated with each low resolution image. The audio packet size and the receive buffers are sized to store a minimum possible number of audio samples to minimize latency in processing audio signals arriving at said receive node, but still ensure audio delivery without interruption due to packet data network delay. Within the second engine load range, the amount of ammonia fueling the engine increases and the amount of combustion promoter fueling the engine remains substantially constant as the load increases. A surface treatment for altering surface property of the sidewalls and the exposed surface of the GFP layer is then carried out, thereby preventing a subsequent deep UV photoresist from interacting with the sidewalls or the exposed surface of the GFP layer either in a chemical or physical way.