Sorry I didn't even see that there was a question here. The dark time seems to make some difference to me but I have nothing to back up what it does with real data. Someone on here posted a couple pics that were interesting I can't remember the thread but I screenshot it.
I don't think the dark period idea differentiates between photo and auto and I've done it with both but again outside of this other members post I hadn't seen a lot of hard data and even this doesn't hundred percent prove anything.
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