As well use steembottracker.com if you are going to try and buy upvotes. You can get a good estimate of your return if you take the time to learn it. Make sure you know the owner of the vote bot, I think many of them just use it to steal. Remember that you can get cheated by a up vote bot. You have to consider the curation reward when buying a vote. that costs 25%. I have been cheated by upvote bot and when I tried to confront them they attacked me took away the vote I paid for and ruined my reputation. There is no sheriff on STEEMIT.