Method and system are disclosed for restoring multiple instances of a software application to a predetermined baseline state. A preferred embodiment provides a restriction orifice adjacent the inlet end of a fuel injector filter of a respective fuel injector. There are numerous ways by which one could learn that such combinations have utility in odor control. A clock recovery and alignment circuit receives the control signal from the decoder and adjusts the operating frequency of the memory device in response to the control signal. The semicircular inner gear is engaged with a small gear on the top of a gear shaft which is mounted rotatably on the middle front part of the removable board. Preferably, the chick is photographed in blue light, using a digital camera.