Oh really? Lord me I didn't know about the upvoting before and after a whale's vote. You know one think about Steemit community is that we learn everyday, just when you think you understand it all, you read a post and learn a few more things. Thank you very much.

That means the strategy is to find a good article that you believe will gets a whale's upvote. Upvote it before the whales but not to early so you don't lose your Curation reward to the author. This is interesting, now I know why am not making it from Curation.