Booster just getting better and better, and with the new rules it has become easy to calculate ROI using this website: http://steem.cool/booster/

• Upvotes when it is at 100% Voting-Power
• Uses EOS ICO method to create "Voting Windows"
• Upvotes in bulk between 8-10 times per day
• A Great alternative to turn SBD into SteemPower
• Refunds users automatically if post is unvoteable (Post is in its last 12 hours, errors, etc...)

Check out this ROI-Tool, and find a profitable window to make some extra dollars on your post. Shoutout to: @blueorgy for creating this tool!