Question | How Much Curation Reward Goes To The Author vs Curators

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The Snip below was taken from the FAQ page on Steemit https://steemit.com/faq.html#What_determines_how_much_of_the_curation_reward_goes_to_the_author_versus_curators

After reading this I'm not sure I fully understand how the curation works, but what I get out of it is that if an author submits a story and clicks the auto upvote button;

Would that mean all further curation rewards goes to the author like the snip below shows

If a post is upvoted the moment of posting, 100% of the curation reward goes to the author.

Or simply his vote would be worth 100% curation to himself and anyone else who votes instantly/before 3mins gives up 100% of the reward to the author.
And say you vote 15 mins after the story is published your vote gives the the curator a 50/50 split with the author or is the curation calculated from the first up-vote.

My question is if the author auto-votes or votes before 3mins does this eliminate all potential curation rewards for all following upvotes.