Excellent explanation, a few months ago for me it was also a big problem.
To all that you have said, I would add only one remark: when you divide the voting power and vote for many posts, make sure that you give the author at least 1 cent, otherwise such a voting does not make sense.
Your point is right, no doubt. But I have seen some authors who appreciate your upvotes even though it doesn't carry any rewards. Anyway, upvotes with at least 1 cent is justifiable I think , for the author and also get something in form of curation reward :)
Thank you for stopping by.
Ya right. Though i m learning a lot!