I have no idea Ed. These were quotes from people I knew who had talked to Sekonic.

I agree there seems to be people who think the controls have to be up to space flight specs. When I belonged to the camera club in texas, I went out to photograph with a member who was a PhD in Chemistry. When we got back to the darkroom to develop the film, he was trying to control the temperature to 1/4 of a degree.....I laughed and he never went out with me again......