I was referring to what I thought was a larger increase in curation rewards when I went from 1000 Steem to 2000 Stee. The reward increase seemed to more then double. So for a while I ran a project where I would combine other peoples Steempower into a voting account which seemed to deliver larger rewards.

But it could have been for some other reason like timing of my vote, since that was also a deciding factor at one time, and the subject of discussion and change with the hardforks.