Nice tutorial Ghostknapper,
There may be a typo that could cause confusion:
"What that means is light that is bright enough to allow your camera/cell phone to be able to keep its auto settings in the realm of
was is optimal for the device."
I think that you meant to write, "what is optimal for the device".
Also, I have found that early morning sub-tropical lighting is good for creating warmth, while highlighting detail, on points. The light is not harsh. It creates contrast, as it rakes across the surface of the stone. It is warm. But, it is not something that everyone has access too. Maybe, you have found some differences in lighting - and the how it affects points - during different hours of the day.
By the way, I loved the photo of my flaker that you made. I am reminded of lines of Tolkien, which I have adapted for my own use:
"One flaker to rule them all, one flaker to bind them"
Plenty of artistic license there.
