I have always primed with FFFFG, just always excepted it as the way it is supposed to be done, never put much thought into it. However, this topic sparked my curiosity and while shooting today I primed the pan with FFG. I was fully expecting a slower ignition time, but it seemed just as fast. I'm sure that special equipment could measure the ignition time difference, but I couldn't. Maybee an experiment is in order to see which granulation provides the most reliable ignition during different weather conditions.