I just downloaded all the Nik plug-ins. But I'm still trying to figure out how to use the plug-ins in a manner that produces results better than the edit tools in Lightroom. For example, for Silver Efex, should I be preparing the photo before I start the conversion to B&W in Silver Efex? For example, adjust exposure, lights, shadows, saturation, etc? Does changing saturation or WB balance matter prior to a conversion to B&W? Thanks!