From 19 days ago:

https://steemit.com/steemit/@freedomshift/last-minute-self-or-bot-upvote-voting-within-x-12-24-hours-of-the-end-of-active-post-period-of-7-days

a good place to start.

My recent post:

https://steemit.com/steemit/@freedomshift/how-do-i-grow-and-earn-voting-with-power-up-100-or-only-50-50-on-posts