Sp back up to level before powerdown
Hp increased by 28
Requirements to curate
Anyone can curate.
Investment is needed whether this is by buying Sp/Hp and powering up or leasing amounts to make it affective.
Tools like steemauto and hive.vote can be used to automate the process.
Looking through posts and upvoting manually can be more profitable but can also be time consuming and is also dependant on luck.
Majority of the larger accounts are automated and this can me used to calculate which authors are most profitable to curate.