you are just about right i dont know much about it either I have about 650 hp and depending on how much mana I have my votes vary, mana is drained as u upvote right now I am at 84% mana which reload every 24 hours I think, Long story short my upvote with 650 hp varies from 0.003 to 0.009 and I also noticed that my upvote will put some post up 2 cents if you will while other upvotes boost the post 75 cents or more