I know the corse teaches 1 second per page to mentally photograph, but I know that you can go faster than that. I am wondering that all that is required before flipping the page is the full peripheral view of the page, or something else.
You can flip the pages as fast as you want, and your subconscious is going to pick it all up. You catch everything that you see within 1/256 of a second.
That's just a starting point. Or reference point should I say. Sometimes I go extremely fast, then at times, I flip pages much slowly, a page every 2 to 3 seconds, depending on how I feel. Something to gauge against like a benchmark.